ⓘ 117 (number)


ⓘ 117 (number)

117 is the smallest possible length of the longest side of a Heronian tetrahedron one whose sides are all rational numbers.

117 is a pentagonal number.

In base 10, 117 is a Harshad number.


1. In arts and media

  • 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.
  • John-117, the codename for the protagonist in the Halo series.

2. In other fields

One hundred seventeen is also:

  • 1-1-7 was the national emergency telephone number in the Philippines until August 1, 2016, when it was superseded by 9-1-1.
  • 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 Andre Hunebelle.
  • F-117 is the designation of the first operational stealth attack aircraft.
  • The number to call Guardia di Finanza for customs/financial/border police in Italy
  • The police emergency telephone number in Switzerland
  • The 117 Catholic Martyrs of Vietnam.
  • The fire emergency telephone number in Portugal
  • 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.
  • A substitute for the number 17, which is considered unlucky in Italy. When Renault exported the R17 to Italy, it was renamed R117.
  • The Japanese telephone company NTT provides a non-free speaking clock on the nationally universal number 117.