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158 (number)
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158 1, 2, 79, 158
158 (one hundred [and] fifty-eight) is the natural number following 157 and preceding 159.
In mathematics
158 is a nontotient, since there is no integer with 158 coprimes below it. 158 is a Perrin number, appearing after 68, 90, 119.https://oeis.org/A001608 Sloane's A001608 : Perrin sequence The On-Line Encyclopedia of Integer Sequences OEIS Foundation 2016-05-28
100! is 158 digits long. It can be expressed as 9.332 x 10157.
In British Rail
The British Rail Class 158 train is a widely used DMU.
References
External links
The Number 158
1
Category:Integers