117 (number)

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

← 116 117 118 →
Cardinalone hundred seventeen
Ordinal117th
(one hundred seventeenth)
Factorization32 × 13
Divisors1, 3, 9, 13, 39, 117
Greek numeralΡΙΖ´
Roman numeralCXVII
Binary11101012
Ternary111003
Octal1658
Duodecimal9912
Hexadecimal7516

In mathematicsEdit

117 is the smallest possible length of the longest side of an integer 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 scienceEdit

In arts and mediaEdit

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

In other fieldsEdit

One hundred seventeen is also:

See alsoEdit

ReferencesEdit

  1. ^ Ivars Peterson, "Perfect Pyramids Archived 2008-05-12 at the Wayback Machine" MAA Online July 28, 2003
  2. ^ Weisstein, Eric W. "Heronian Tetrahedron." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/HeronianTetrahedron.html
  3. ^ "Sloane's A000326 : Pentagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-27.
  4. ^ "Sloane's A005349 : Niven (or Harshad) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-27.
  5. ^ Niederman, Derrick (2009), Number Freak: From 1 to 200- The Hidden Language of Numbers Revealed, Penguin, p. 10, ISBN 9781101135488.
  6. ^ Alvarez, Chito (July 22, 2016). "DILG to implement 'Emergency hotline 911' in August". Manila Bulletin. Retrieved July 29, 2016.

External linksEdit