See also Thirteen, a 2003 movie, 13 an album by British band Blur, Thirteen an album by Teenage Fanclub. 13 (thirteen) is the natural number following 12 and preceding 14. << 10 11 12 13 14 15 16 17 18 19 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 13 number - In mathematics. Thirteen is the 6th smallest prime number; the next is seventeen. 13 is the second Wilson prim ...

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Thirteen is regarded as an unlucky number in many cultures. One (probably unverifiable) theory holds that 13 is a reflection of the human fear of the unknown, since it is the first number that cannot be enumerated by using our 10 fingers and 2 feet. Unreasoned fear of the number 13 is termed triskaidekaphobia. Due to this fear, some tall buildings have resorted to skipping the "thirteenth floor", simply by numbering it "14" (though it's really still the thirteenth floor) or by designating the floor "12a" or similar instead. The thirteenth of ...

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Thirteen is regarded as an unlucky number in many cultures. One (probably unverifiable) theory holds that 13 is a reflection of the human fear of the unknown, since it is the first number that cannot be enumerated by using our 10 fingers and 2 feet. Unreasoned fear of the number 13 is termed triskaidekaphobia. Due to this fear, some tall buildings have resorted to skipping the "thirteenth floor", simply by numbering it "14" (though it's really still the thirteenth floor) or by designating the floor "12a" or similar instead. The thirteenth of ...

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70 (seventy) is the natural number following 69 and preceding 71. << 70 71 72 73 74 75 76 77 78 79 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 70 number - In mathematics. 70 is a Pell number and a Harshad number. Its factorization makes it a sphenic number. It is the seventh pentagonal number and the fourth 13-gonal number, as well as a pentatope number. It ...

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10 (ten) is the natural number following 9 and preceding 11. << 10 11 12 13 14 15 16 17 18 19 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> deci- (from Latin) 10 number - In mathematics. Ten is a composite number, its proper divisors being 1, 2 and 5. Ten is the smallest noncototient, a number that can not be expressed as the difference between any integer and ...

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<< 130 131 132 133 134 135 136 137 138 139 >> List of numbers -- Integers << 100 110 120 130 140 150 160 170 180 190 >> 132 is the natural number following 131 and preceding 133. 132 number - In mathematics. 132 is a Catalan number, a Harshad number, a pronic number. If you take the sum of all 2-digit numbers you can make from 132, you get 132: 12 + 13 + 21 + 23 + 31 + 32 = ...

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19 (nineteen) is the natural number following 18 and preceding 20. It is a prime number. << 10 11 12 13 14 15 16 17 18 19 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 19 number - In mathematics. Nineteen is the 8th smallest prime number. The sequence continues 23, 29, 31, 37... 19 is the seventh Mersenne prime exponent. It is also a Keith number, because it recurs in a Fibonac ...

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15 (fifteen) is the natural number following 14 and preceding 16. << 10 11 12 13 14 15 16 17 18 19 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 15 number - In mathematics. Fifteen is a triangular number and a hexagonal number, a pentatope number, and the 4th Bell number. Fifteen is the double factorial of 5. It is a composite number; its proper divisors being 1, 3 and 5. With only tw ...

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14 (fourteen) is the natural number following 13 and preceding 15. << 10 11 12 13 14 15 16 17 18 19 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 14 number - In mathematics. Fourteen is a composite number, its proper divisors being 1, 2 and 7. In base fifteen and higher bases (such as hexadecimal), fourteen is represented as E. Fourteen is the sum of the first th ...

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18 (eighteen) is the natural number following 17 and preceding 19. << 10 11 12 13 14 15 16 17 18 19 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 18 number - In mathematics. Eighteen is a composite number, its proper divisors being 1, 2, 3, 6 and 9. It is a heptagonal number, and as the sum of the first three pentagonal numbers, it is a pentagonal pyramidal number. It is a Harshad num ...

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11 (eleven) is the natural number following 10 and preceding 12. Eleven is the smallest positive integer requiring three syllables in English. << 10 11 12 13 14 15 16 17 18 19 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 11 number - In mathematics. Eleven is the 5th smallest prime number. 11 is the fourth Sophie Germain prime, the third safe prime, the fourth Lucas prime, and the fir ...

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<< 10 11 12 13 14 15 16 17 18 19 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 12 (twelve) is the natural number following 11 and preceding 13. A group of twelve things is called a Duodecad. 12 number - In mathematics. Twelve is a composite number, the smallest number with exactly six divisors, its proper divisors being 1, 2, 3, 4 and 6. Twelve is also a highly composite ...

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180 (one hundred eighty) is the natural number following 179 and preceding 181. List of numbers -- Integers << 100 110 120 130 140 150 160 170 180 190 >> 180 number - In mathematics. One hundred eighty is the sum of six consecutive primes (19 + 23 + 29 + 31 + 37 + 41), as well as the sum of eight consecutive primes (11 + 13 + 17 + 19 + 23 + 29 + 31 + 37). Using degrees (°) to measure angles, 180° is called strai ...

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17 (seventeen) is the natural number following 16 and preceding 18. << 10 11 12 13 14 15 16 17 18 19 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 17 number - In mathematics. Seventeen is the 7th prime number. The next prime is nineteen, with which it comprises a twin prime. 17 is the sum of the first four primes. 17 is the sixth Mersenne prime exponent, yielding 131071. 17 is an Eise ...

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<< 30 31 32 33 34 35 36 37 38 39 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 39 is the natural number following 38 and preceding 40. 39 number - In mathematics. Thirty-nine is the sum of five consecutive primes (3 + 5 + 7 + 11 + 13) and the sum of the first three powers of 3 (31 + 32 + 33). Given 39, the Mertens f ...

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The Number of the Beast is mentioned in the Book of Revelation of the Christian New Testament and has long been accepted to be 666. In some interpretations of Christian eschatology the "Beast" is believed to refer to an Antichrist. The number 666 has many mathematical properties, some more interesting than others. Number of the Beast - References from the book of Revelation. Mark of the Beast Revelation 13:17 states: "... no one may buy or sell exc ...

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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:

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16 (sixteen) is the natural number following 15 and preceding 17. << 10 11 12 13 14 15 16 17 18 19 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >> 16 number - In The United States of America. Sixteen is a turning point age for young Americans. Not only do American sixteen year olds gain the ability to aquire an official driver's license, but female sixteen year olds also gain privacy la ...

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In mathematics, a Wilson prime is a certain kind of prime number. A prime p is called a Wilson prime if p² divides (p − 1)! + 1, where ! denotes the factorial function; compare this with Wilson's theorem, which states that every prime p divides (p − 1)! + 1. The only known Wilson primes are 5, 13, and 563 (sequence A007540 in OEIS); if any others exist, they must be greater than 5 · 108. It has been conjectured that infinitely many Wilson primes exist, and that the number of Wilson primes in an interval [x, ...

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