117 (number)

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← 116 117 118 →
Cardinalone hundred seventeen
(one hundred seventeenth)
Factorization32 × 13
Divisors1, 3, 9, 13, 39, 117
Greek numeralΡΙΖ´
Roman numeralCXVII
Base 363936

117 (one hundred [and] seventeen) is the natural number following 116 and preceding 118.

In mathematics

117 is the smallest possible length of the longest side of a Heronian tetrahedron (one whose sides are all rational numbers).[1][2]

117 is a pentagonal number.[3]

In base 10, 117 is a Harshad number.[4]

In science

In arts and media

  • John-117, the codename for the protagonist in the Halo series.
  • Canadian Sci-Fi show First Wave (TV series) had a protagonist named Cade Foster who was identified as Subject 117 by an alien race known as the Gua.

In other fields

One hundred seventeen is also:

  • A substitute for the number 17, which is considered unlucky in Italy. When Renault exported the R17 to Italy, it was renamed R117.[5]
  • The number to call Guardia di Finanza for customs/financial/border police in Italy
  • The fire emergency telephone number in Portugal
  • 1-1-7 was the national emergency telephone number in the Philippines until August 1, 2016, when it was superseded by 9-1-1.[6]
  • The police emergency telephone number in Switzerland
  • F-117 is the designation of the first operational stealth attack aircraft.
  • OSS 117, the codename for the fictional secret agent Hubert Bonisseur de La Bath by author Jean Bruce and later for a film series directed mostly by André Hunebelle.
  • Psalm 117 is the exact middle chapter of the King James version of the Bible.
  • In The Mystery of Element 117 (1949) by Milton Smith, a window is opened into a new "hyperplane of hyperspace" containing those who have already died on earth.
  • The Japanese telephone company NTT provides a non-free speaking clock on the nationally universal number 117.
  • The 117 Catholic Martyrs of Vietnam.
  • Chinese dragons are usually depicted as having 117 scales.

See also

  • List of highways numbered 117


External links

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