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131085752 = 2378812657
BaseRepresentation
bin1111101000000…
…11010110111000
3100010122211211212
413310003112320
5232024221002
621001342252
73151132130
oct764032670
9303584755
10131085752
1167aa3736
1237a97988
1321208a45
14135a3ac0
15b795352
hex7d035b8

131085752 has 32 divisors (see below), whose sum is σ = 281322720. Its totient is φ = 56094720.

The previous prime is 131085749. The next prime is 131085761. The reversal of 131085752 is 257580131.

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, 48008 + ... + 50664.

It is an arithmetic number, because the mean of its divisors is an integer number (8791335).

Almost surely, 2131085752 is an apocalyptic number.

It is an amenable number.

131085752 is an abundant number, since it is smaller than the sum of its proper divisors (150236968).

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

131085752 is a wasteful number, since it uses less digits than its factorization.

131085752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 131085752 is about 11449.2686229296. The cubic root of 131085752 is about 507.9861012586.

The spelling of 131085752 in words is "one hundred thirty-one million, eighty-five thousand, seven hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 881 1762 2657 3524 5314 6167 7048 10628 12334 18599 21256 24668 37198 49336 74396 148792 2340817 4681634 9363268 16385719 18726536 32771438 65542876 131085752