183 (number)

183 (number)

183 is the natural number following 182 and preceding 184.

183 is a semiprime (also called biprime, 2-almost prime, or pq number).

183 is a central polygonal number, n^2 - n + 1, where n=14. [http://www.research.att.com/~njas/sequences/A002061 A002061]

183 is a perfect totient number.

183 is a number of points in projective plane over the Galois field GF(13).

183 is a repdigit in base 13 (111).

For the year 183 AD, see 183.

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