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136291902 = 23191195543
BaseRepresentation
bin10000001111110…
…10011000111110
3100111110100100020
420013322120332
5234342320102
621305113010
73243314325
oct1007723076
9314410306
10136291902
116aa2a13a
1239788766
132230c5c6
141415b0bc
15be72bbc
hex81fa63e

136291902 has 16 divisors (see below), whose sum is σ = 286930560. Its totient is φ = 43039512.

The previous prime is 136291879. The next prime is 136291919. The reversal of 136291902 is 209192631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597658 + ... + 597885.

It is an arithmetic number, because the mean of its divisors is an integer number (17933160).

Almost surely, 2136291902 is an apocalyptic number.

136291902 is an abundant number, since it is smaller than the sum of its proper divisors (150638658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136291902 is a wasteful number, since it uses less digits than its factorization.

136291902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195567.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 136291902 is about 11674.4122764275. The cubic root of 136291902 is about 514.6239778824.

The spelling of 136291902 in words is "one hundred thirty-six million, two hundred ninety-one thousand, nine hundred two".

Divisors: 1 2 3 6 19 38 57 114 1195543 2391086 3586629 7173258 22715317 45430634 68145951 136291902