14 (number)

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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 >>

Cardinal 14
fourteen
Ordinal 14th
fourteenth
Factorization <math> 2 \cdot 7</math>
Divisors 1, 2, 7, 14
Roman numeral XIV or XIIII
Binary 1110
Hexadecimal E

Contents

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In mathematics

Fourteen is a composite number, its proper divisors being Template:Num, Template:Num, Template:Num and Template:Num.

In base fifteen and higher bases (such as hexadecimal), fourteen is represented as E.

Fourteen is the sum of the first three squares, which makes it a square pyramidal number.

This number is the lowest even n for which the equation φ(x) = n has no solution, making it the first even nontotient (see Euler's totient function).

14 is a Catalan number, the only semiprime among all Catalan numbers.

Take a set of real numbers and apply the closure and complement operations to it in any possible sequence. At most 14 distinct sets can be generated in this way. This holds even if the reals are replaced by a more general topological space.

Fourteen is a Keith number in base 10: 1, 4, 5, 9, 14...

Fourteen is an open meandric number.

Fourteen is a Companion Pell number.

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In science

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Chemistry

  • The maximum number of electrons that can fit in an f sublevel
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Astronomy

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In sports

  • Retired number of former baseball stars Pete Rose and Ernie Banks
  • Number worn by Ivan Miljković, Serbian volleyball player, considered to be among the best attackers in the world
  • The G-14 is a union of eighteen football clubs.
  • In rugby union the right wing wears the 14 shirt.
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In other fields

Fourteen is:

  • A number representing good luck in South American countries
  • The number of days in a fortnight.
  • In traditional British units of weight, the number of pounds in a stone.
  • A number 'encoded' in a lot of the music of Johann Sebastian Bach. Bach may have considered this number a sort of signature, since given A = 1, B = 2, C = 3, etc., then B + A + C + H = 14 and J + S + B + A + C + H = 41.
  • The number of points outlined by president Woodrow Wilson for reconstructing a new Europe following World War I, see Fourteen Points.
  • The Fourteen Holy Helpers were a group of saints formerly venerated together by Roman Catholics.
  • Among neo-Nazis to signify the "Fourteen Words", "We must secure the existence of our people and a future for white children", attributed to David Lane.
  • An unlucky number in China. Although 14 is usually said as "shi si," which sounds like "ten die", it can also be said as "yi si," literally "one four." There is also a common way to say "one," and it is "yao." Thus, 14 can also be said as "yao si," literally "one four," but it also means "want to die."
  • The section that you go to when you die in the Grailquest books
  • The number of a Mexican street gang, the Norteños. It designates N, the fourteenth letter of the alphabet, which stands for "Northerner".
  • The number of legs on a pillbug, as well as on Hallucigenia.
  • Historical years: 14 A.D., 14 B.C., or 1914
  • A common designation for the thirteenth floor in many buildings for superstitious reasons
  • The number of fonts included in a standard installation of Adobe Acrobat or Acrobat Reader (called "Base 14 fonts"). This set is the same as Base 13 fonts with the addition of Zapf Dingbats.
  • The number of muqatta'at in the Qur'an.ca:Catorze

da:14 (tal) de:Vierzehn es:Catorce eo:Dek kvar fr:14 (nombre) ko:14 it:Quattordici he:14 (מספר) la:Quattuordecem lt:14 (skaičius) nah:Mahtlahtlin-nahui nl:14 (getal) ja:14 nap:Quattuòrdece no:14 (tall) nn:Talet 14 pl:14 (liczba) pt:Catorze ru:14 (число) sl:14 (število) sv:14 (tal) zh:14

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