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131365074 = 23199269409
BaseRepresentation
bin1111101010001…
…11100011010010
3100011012001000010
413311013203102
5232112140244
621011335350
73153404361
oct765074322
9304161003
10131365074
1168174585
1237bb1556
13212a5c19
14136377d8
15b7eceb9
hex7d478d2

131365074 has 32 divisors (see below), whose sum is σ = 265680000. Its totient is φ = 43300224.

The previous prime is 131365049. The next prime is 131365109. The reversal of 131365074 is 470563131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320982 + ... + 321390.

It is an arithmetic number, because the mean of its divisors is an integer number (8302500).

Almost surely, 2131365074 is an apocalyptic number.

131365074 is an abundant number, since it is smaller than the sum of its proper divisors (134314926).

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

131365074 is a wasteful number, since it uses less digits than its factorization.

131365074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 131365074 is about 11461.4603781543. The cubic root of 131365074 is about 508.3466566665.

The spelling of 131365074 in words is "one hundred thirty-one million, three hundred sixty-five thousand, seventy-four".

Divisors: 1 2 3 6 199 269 398 409 538 597 807 818 1194 1227 1614 2454 53531 81391 107062 110021 160593 162782 220042 244173 321186 330063 488346 660126 21894179 43788358 65682537 131365074