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131348904 = 23322923899
BaseRepresentation
bin1111101010000…
…11100110101000
3100011011012211020
413311003212220
5232111131104
621011132440
73153306261
oct765034650
9304135736
10131348904
1168163415
1237ba4120
132129b75b
1413631968
15b7e82d9
hex7d439a8

131348904 has 32 divisors (see below), whose sum is σ = 329820000. Its totient is φ = 43589952.

The previous prime is 131348897. The next prime is 131348909. The reversal of 131348904 is 409843131.

It is not an unprimeable number, because it can be changed into a prime (131348909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6454 + ... + 17445.

It is an arithmetic number, because the mean of its divisors is an integer number (10306875).

Almost surely, 2131348904 is an apocalyptic number.

It is an amenable number.

131348904 is an abundant number, since it is smaller than the sum of its proper divisors (198471096).

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

131348904 is a wasteful number, since it uses less digits than its factorization.

131348904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24137 (or 24133 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 131348904 is about 11460.7549489552. The cubic root of 131348904 is about 508.3257979951.

The spelling of 131348904 in words is "one hundred thirty-one million, three hundred forty-eight thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 24 229 458 687 916 1374 1832 2748 5496 23899 47798 71697 95596 143394 191192 286788 573576 5472871 10945742 16418613 21891484 32837226 43782968 65674452 131348904