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156 (number)

From Wikipedia, the free encyclopedia
Natural number
← 155156 157 →
Cardinalone hundred fifty-six
Ordinal156th
(one hundred fifty-sixth)
Factorization22 × 3 × 13
Divisors1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
Greek numeralΡΝϚ´
Roman numeralCLVI,clvi
Binary100111002
Ternary122103
Senary4206
Octal2348
Duodecimal11012
Hexadecimal9C16

156 (one hundred [and] fifty-six) is thenatural number, following155 and preceding157.

In mathematics

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156 is anabundant number, apronic number, adodecagonal number,[1] and arefactorable number.

156 is the number ofgraphs on 6 unlabeled nodes.[2]

156 is arepdigit inbase 5 (1111), and also in bases 25, 38, 51, 77, and 155.

156 degrees is theinternal angle of apentadecagon.

References

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  1. ^"Sloane's A051624 : 12-gonal (or dodecagonal) numbers".The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved2016-05-28.
  2. ^"Sloane's A000088 : Number of graphs with n nodes".The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved2021-12-19.

External links

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