69 (number)
See also: 69 (homonymy)
69 ( sixty-nine ) is the Entier naturalness which follows 68 and which precedes 70.
In mathematics
Sixty-nine is the greatest number whose Factorielle is lower than 10100 (69! ≈ 1,71x1098). What wants to say that it is often the greatest factorial which can be calculated with the pocket calculators.It has also the amusing property to be the only number whose cube and square only once contain all the figures from zero to nine:
-
69 ² = 4761
- 69 ³ = 328509
In other fields
Sixty-nine is also:- the name of a sexual position.
- part of the erotic title of 69 Year by Serge Gainsbourg.
- the Atomic number of the Thulium, a lanthanide.
- the number of the French Department, the the Rhone.
- historical Years: -69, 69 or 1969.
Zh-yue: 69
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