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From Wikipedia, the free encyclopedia

← 153  154  155 →
Cardinalone hundred fifty-four
Ordinal154th
(one hundred fifty-fourth)
Factorization2 × 7 × 11
Divisors1, 2, 7, 11, 14, 22, 77, 154
Greek numeralΡΝΔ´
Roman numeralCLIV
Binary100110102
Ternary122013
Quaternary21224
Quinary11045
Senary4146
Octal2328
Duodecimal10A12
Hexadecimal9A16
Vigesimal7E20
Base 364A36

154 (one hundred [and] fifty-four) is the natural number following 153 and preceding 155.

In mathematics

154 is a nonagonal number.[1] Its factorization makes 154 a sphenic number

There is no integer with exactly 154 coprimes below it, making 154 a noncototient, nor is there, in base 10, any integer that added up to its own digits yields 154, making 154 a self number

154 is the sum of the first six factorials, if one starts with and assumes that .

With just 17 cuts, a pancake can be cut up into 154 pieces (Lazy caterer's sequence).[2]

The distinct prime factors of 154 add up to 20, and so do the ones of 153, hence the two form a Ruth-Aaron pair. 154! + 1 is a factorial prime.

In music

  • 154 is an album by Wire, named for the number of live gigs Wire had performed at that time[3]

In the military

In sports

In transportation

In other fields

154 is also:

See also

References

  1. ^ "Sloane's A001106 : 9-gonal (or enneagonal or nonagonal) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.
  2. ^ "Sloane's A000124 : Central polygonal numbers (the Lazy Caterer's sequence)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.
  3. ^ "154 - Wire". Allmusic. Retrieved 14 February 2013.

External links

This page was last edited on 26 February 2019, at 20:19
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