<< 1k 2k 3k 4k 5k 6k 7k 8k 9k >> 1000 (one thousand) is the natural number following 999 and preceding 1001. 1000 number - In mathematics. The decimal representation for one thousand is a one followed by three zeroes. In scientific notation, it's written as 1 × 103. The SI prefix for a thousand is "kilo-". This is also abbreviated as k: 30,000 can be written 30k A millennium has 1000 ...

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1000 number - In mathematics 1000 number - In popular culture 1000 number - In transportation 1000 number - Trivia 1000 number - Selected numbers in the thousands 1001-1999
1000 number - 1001-1249 1000 number - 1250-1499 1000 number - 1500-1749 1000 number - 1750-1999

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A centered triangular number is a centered figurate number that represents a triangle with a dot in the center and all other dots surrounding the center in successive triangular layers. The centered triangular number for n is given by the formula The following image shows the building of the centered triangular numbers using the associated figures: at each step the previous figure, showed in red, is surrounded by a triangle of new points, in b ...

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Centered triangular number - Centered triangular prime

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Six hundred is the natural number following five hundred and ninety-nine and preceding six hundred and one. It is a pronic number and a Harshad number. << 0 100 200 300 400 500 600 700 800 900 >> 600 and below is considered a poor credit score. For the year AD, see 600. 601 prime number, centered pentagonal number 602 = 2 × 7 × 43, nontotient 603 = 32 × 67, Harshad number 604 = 22 × 151, nontotie ...

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Melancholia (Greek μελαγχολια) was described as a distinct disease as early as the fifth and fourth centuries BC in the Hippocratic writings. It was characterized by "aversion to food, despondency, sleeplessness, irritability, restlessness," as well as the statement that "Grief and fear, when lingering, provoke melancholia". It is now generally believed that melancholia was the same phe ...

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Five hundred is the natural number following four hundred and ninety-nine and preceding five hundred and one. << 0 100 200 300 400 500 600 700 800 900 >> 500 number - Mathematical properties. 500 is a Harshad number. 500 number - Other fields. Five hundred is also a car, the Ford Five Hundred a card game, see 500 (card game) an outdoor ball/frisbee game, ...

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500 number - Mathematical properties 500 number - Other fields

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20 (twenty) is the natural number following 19 and preceding 21. A group of twenty units is often referred to as a score. << 20 21 22 23 24 25 26 27 28 29 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 20 number - In mathematics. Twenty is a composite number, its proper divisors being 1, 2, 4, 5 and 10. It is also the sum of the first four triangular num ...

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20 number - In mathematics 20 number - In science 20 number - In other fields

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Three hundred is the natural number following two hundred and ninety-nine and preceding three hundred one. << 0 100 200 300 400 500 600 700 800 900 >> 300 number - Mathematical properties. It is a triangular number and the sum of a twin prime (149 + 151), as well as the sum of ten consecutive primes (13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47). It is a Harshad number. 300 number - Other fields. Including:

300 number - Mathematical properties 300 number - Other fields 300 number - Integers from 301 to 399

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111 is the natural number following 110 and preceding 112. << 110 111 112 113 114 115 116 117 118 119 >> List of numbers -- Integers << 100 110 120 130 140 150 160 170 180 190 >> 111 number - In mathematics. One hundred eleven is R3 or the second repunit, a number like 11, 111, or 1111 that consists of repeated units, or 1's. It equals 3 x 37, therefore all tripl ...

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111 number - In mathematics 111 number - In other fields

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To count to one thousand, counting one number every second continuously would take 16 minutes and 40 seconds. ...

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1000 number, 1000 number - In mathematics, 1000 number - In popular culture, 1000 number - In transportation, 1000 number - Trivia, 1000 number - Selected numbers in the thousands 1001-1999, 1000 number - 1001-1249, 1000 number - 1250-1499, 1000 number - 1500-1749, 1000 number - 1750-1999

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Rubik's Cube - Conception and development. The Magic Cube was invented in 1974 by Ernő Rubik, a Hungarian sculptor and professor of architecture with an interest in geometry and the study of 3D forms. Ernő obtained Hungarian patent HU170062 for the Magic Cube in 1975, but did not take out international patents. The first test batches of the product were produced in late ...

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Rubik's Cube, Rubik's Cube - History, Rubik's Cube - Conception and development, Rubik's Cube - Popularity, Rubik's Cube - Workings, Rubik's Cube - Permutations, Rubik's Cube - Centre faces, Rubik's Cube - Solutions, Rubik's Cube - Competitions, Rubik's Cube - Rubik's Cube in mathematics and science, Rubik's Cube - Rubik's Cube in Philosophy of Science

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Mr. 3000 is the title of the 2004 movie starring Bernie Mac. 3000 is sometimes used (often with comical intent) to represent a year in the distant future. For example, the events of the television series Futurama take place in the year 3000; the year is also used in the title of the comedy series Mystery Science Theater 3000. ...

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3000 number, 3000 number - In other fields, 3000 number - Selected numbers in the range 3001-3999

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Sixty-five is an octagonal number. It is also a Cullen number. Given 65, the Mertens function returns 0. This number is the magic constant of 5 by 5 magic square: This number is also the magic constant of n-Queens Problem for n = 5. 65 can be expressed as a sum of two squares in two ways, 65 = 82 + 12 = 72 + 42. It appears in the Padovan sequence, preceded by the terms 28, 37, 4 ...

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65 number, 65 number - In mathematics, 65 number - In science, 65 number - In other fields

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On-Line Encyclopedia of Integer Sequences - ID number. Every sequence in the OEIS has a serial number, a six-digit positive integer, prefixed by A (and zero-padded on the left prior to November 2004). Numbers are either assigned by the editor(s) or by an A number dispenser, which is handy for when contributors wish to send in related sequences at once and be able to create cross-references. An A number from the dispenser expires a month from issue if not used. But as the following tab ...

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On-Line Encyclopedia of Integer Sequences, On-Line Encyclopedia of Integer Sequences - History, On-Line Encyclopedia of Integer Sequences - Non-integers, On-Line Encyclopedia of Integer Sequences - Conventions, On-Line Encyclopedia of Integer Sequences - Special meaning of zero, On-Line Encyclopedia of Integer Sequences - Lexicographic ordering, On-Line Encyclopedia of Integer Sequences - Self-referentiality, On-Line Encyclopedia of Integer Sequences - An abridged example of a typical OEIS entry, On-Line Encyclopedia of Integer Sequences - Entry fields, On-Line Encyclopedia of Integer Sequences - ID number, On-Line Encyclopedia of Integer Sequences - URL, On-Line Encyclopedia of Integer Sequences - Sequence, On-Line Encyclopedia of Integer Sequences - Signed, On-Line Encyclopedia of Integer Sequences - Name, On-Line Encyclopedia of Integer Sequences - Comments, On-Line Encyclopedia of Integer Sequences - Maple Mathematica and other programs, On-Line Encyclopedia of Integer Sequences - Keywords, On-Line Encyclopedia of Integer Sequences - Offset, On-Line Encyclopedia of Integer Sequences - Authors, On-Line Encyclopedia of Integer Sequences - Searching the OEIS, On-Line Encyclopedia of Integer Sequences - Enter a sequence, On-Line Encyclopedia of Integer Sequences - Enter a word, On-Line Encyclopedia of Integer Sequences - Enter a sequence number, On-Line Encyclopedia of Integer Sequences - Errors or problems in the OEIS

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Many board games share the element of trying to be the first to get n-in-a-row: three men's morris, nine men's morris, pente, gomoku, Connect Four, Quarto, Gobblet. The m,n,k-games are a family of generalized games based on tic-tac-toe. 3-dimensional tic-tac-toe on a 3×3×3 board, though the first player has an easy win by playing in the centre. Another variant is played on a 4×4×4 board (called Qubic) though it was solved by Victor Allis in 1994 (the first player can force a win). A more complex v ...

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Tic-tac-toe, Tic-tac-toe - Strategy, Tic-tac-toe - Variations, Tic-tac-toe - Alternative names

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If a magic square of order n is normal (i.e., it contains the numbers 1 to n2), then the magic constant depends only on n; its value is . This formula is a consequence of the formula for the sum of the first n integers applied to the case k = n2, yielding n2(n2+1)/2, which is then divided by n because there ...

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Magic constant, Magic constant - Normal magic squares, Magic constant - External link

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34 has four divisors, 1, 2, 17 and itself. Its neighbors, 33 and 35 also have four divisors each, and 34 is the smallest number to be surrounded by numbers with the same number of divisors as it has. It is the ninth Fibonacci number and a companion Pell number. Since it is an odd-indexed Fibonacci number, 34 is a Markov number, appearing in solutions with other Fibonacci numbers, such as (1, 13, 34), (1, 34, 89), etc. This number is the magic constant of a 4 by 4 magic square: This number is also the magic constant of n-Queens Problem for n = 4 ...

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34 number, 34 number - In mathematics, 34 number - In science, 34 number - In other fields

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The five words translate as follows: Sator  'Sower', 'planter' Arepo  Likely a proper name; its similarity with arrepo, from ad repo, 'I creep towards', is coincidental Tenet  'hold' Opera  'work', 'care', 'effort' Rotas  'wheels' Two possible translations of the phrase are 'The sower Arepo holds the wheels with effort' and 'The ...

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Sator Arepo Tenet Opera Rotas, Sator Arepo Tenet Opera Rotas - Translation, Sator Arepo Tenet Opera Rotas - Appearances, Sator Arepo Tenet Opera Rotas - Anagrams

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Twenty is a composite number, its proper divisors being 1, 2, 4, 5 and 10. It is also the sum of the first four triangular numbers, making it a tetrahedral number. 20 is the smallest abundant number that is not a multiple of 3. It is a Harshad number and a self number. 20 is the total number of digits on the human body, which makes it a possible candidate for a numeral system. Twenty is used as a radix for vigesimal number systems. In the old UK currency system, there were twenty shillings in a pound. A polyhedron with twenty faces is an icosahedron. Twenty is the first number ...

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20 number, 20 number - In mathematics, 20 number - In science, 20 number - In other fields

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One hundred eleven is R3 or the second repunit, a number like 11, 111, or 1111 that consists of repeated units, or 1's. It equals 3 x 37, therefore all triplets (numbers like 222 or 666) in base ten are of the form 3n x 37. All triplets in all bases are multiples of 111 in that base, therefore the number represented by 111 in a particular base is the only triplet that can ever be prime. "111" is not prime in base ten, but is prime in base two, where 111 = 7 in base ten. It is also prime in these ...

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111 number, 111 number - In mathematics, 111 number - In other fields

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