14 (number)

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← 13 14 15 →
Cardinal fourteen
Ordinal 14th
(fourteenth)
Numeral system tetradecimal
Factorization 2 × 7
Divisors 1, 2, 7, 14
Roman numeral XIV
Greek prefix tetrakaideca-
Latin prefix quattuordec-
Binary 11102
Ternary 1123
Quaternary 324
Quinary 245
Senary 226
Octal 168
Duodecimal 1212
Hexadecimal E16
Vigesimal E20
Base 36 E36

14 (fourteen /fɔərˈtn/) is the natural number following 13 and preceding 15.

In speech, the numbers 14 and 40 are often confused. When carefully enunciated, they differ in which syllable is stressed: 14 Listeni/fɔərˈtn/ vs 40 /ˈfɔːrti/.[1] In relation to the word "four" (4), 14 is spelled "fourteen". In a 24-hour clock, the fourteenth hour is in conventional language called two or two o'clock.

In mathematics[edit]

Fourteen is a composite number.

In hexadecimal, fourteen is represented as E.

Fourteen 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).[2]

14 is a Catalan number.[3]

The cuboctahedron, the truncated cube, and the truncated octahedron each have fourteen faces. The rhombic dodecahedron, which tessellates 3-dimensional space and is the dual of the cuboctahedron, has fourteen vertices. The truncated octahedron, which also tessellates 3-dimensional space, is the only permutohedron.

In science[edit]

Chemistry[edit]

Astronomy[edit]

In religion and mythology[edit]

Christianity[edit]

Mormonism[edit]

Islam[edit]

  • The number of Muqattaʿat in the Quran.
  • The number 12 is the (Masoomeen) in Shia Ithna-Asheri Islam.

Hinduism[edit]

The number of years of Rama's exile in the forests in Hinduism.

Mythology[edit]

The number of pieces the body of Osiris was torn into by his fratricidal brother Set.

Age 14[edit]

  • Age 14 is the earliest that the emancipation of minors can occur in the U.S.
  • Minimum age a person can purchase, rent or buy tickets to a 14A rated movie in Canada without an adult. Ratings are provincial, so ratings may vary. A movie can be 14A in one or some provinces and PG in other provinces. A movie can also be rated 14A in one or some provinces and 18A in other provinces. Quebec has a different rating system for films.
  • Youngest age in Canada a person can watch a 14+ rated show without consent from a legal guardian.
  • Minimum age at which one can view, rent, purchase, or buy tickets to an 18A rated movie with an accompanying adult in the Canadian provinces of the Maritimes and Manitoba.
  • Minimum age at which one can work in many U.S states. Some require parental consent while others don't.
  • Minimum age at which one can work in most Australian states with parent's consent.
  • Minimum age at which one can drive a vehicle in the U.S. with a driver's license (with supervision of an adult over 18 years of age, and with a valid, unmarked driver's license, and at least 365 days of experience driving an actual automobile)
  • The minimum age limit to drive a 50cc motorbike in Italy.
  • The most common age of criminal responsibility in Europe.[5]

In sports[edit]

  • In golf, a player can have no more than 14 clubs in the bag.
  • In rugby union, the starting right wing wears the 14 shirt.

In other fields[edit]

Fourteen is:

References[edit]

  1. ^ The vowels of the syllables four- and for- are identical in many dialects, such as General American and younger speakers of Received Pronunciation.
  2. ^ "Sloane's A005277 : Nontotients". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-01. 
  3. ^ "Sloane's A000108 : Catalan numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-01. 
  4. ^ "Revelation in Context", Irene Belyeu. 2006. Retrieved 3 feb 2017
  5. ^ Zimring, Franklin (2015). Juvenile Justice in Global Perspective. NYU Press. p. 21. ISBN 978-1-4798-9044-6.  Extract of page 21
  6. ^ Bowley, Roger. "14 and Shakespeare the Numbers Man". Numberphile. Brady Haran. 
  7. ^ Jean Ann Bowman, Jorge Luis Borges: A study of criticism in the United States, M.A. thesis submitted to and approved by the Graduate Faculty of Texas Tech University, May 1987.