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131650986 = 2331707801
BaseRepresentation
bin1111101100011…
…01010110101010
3100011201120012110
413312031112222
5232200312421
621021423150
73156005055
oct766152652
9304646173
10131650986
116834a375
123810aab6
13213760bc
14136ada9c
15b857a76
hex7d8d5aa

131650986 has 16 divisors (see below), whose sum is σ = 271795968. Its totient is φ = 42468000.

The previous prime is 131650951. The next prime is 131651027. The reversal of 131650986 is 689056131.

It is a super-2 number, since 2×1316509862 = 34663964229544392, which contains 22 as substring.

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, 353715 + ... + 354086.

It is an arithmetic number, because the mean of its divisors is an integer number (16987248).

Almost surely, 2131650986 is an apocalyptic number.

131650986 is an abundant number, since it is smaller than the sum of its proper divisors (140144982).

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

131650986 is a wasteful number, since it uses less digits than its factorization.

131650986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707837.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 131650986 is about 11473.9263550016. The cubic root of 131650986 is about 508.7151896608.

The spelling of 131650986 in words is "one hundred thirty-one million, six hundred fifty thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 31 62 93 186 707801 1415602 2123403 4246806 21941831 43883662 65825493 131650986