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131902912 = 2612591637
BaseRepresentation
bin1111101110010…
…10110111000000
3100012012100210001
413313022313000
5232231343122
621031045344
73161104411
oct767126700
9305170701
10131902912
1168501679
1238210854
132143397b
1413737808
15b8a7527
hex7dcadc0

131902912 has 28 divisors (see below), whose sum is σ = 262112760. Its totient is φ = 65858816.

The previous prime is 131902889. The next prime is 131902913. The reversal of 131902912 is 219209131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131902913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79758 + ... + 81394.

It is an arithmetic number, because the mean of its divisors is an integer number (9361170).

Almost surely, 2131902912 is an apocalyptic number.

It is an amenable number.

131902912 is a deficient number, since it is larger than the sum of its proper divisors (130209848).

131902912 is a wasteful number, since it uses less digits than its factorization.

131902912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908 (or 2898 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 131902912 is about 11484.8993029978. The cubic root of 131902912 is about 509.0394736532.

The spelling of 131902912 in words is "one hundred thirty-one million, nine hundred two thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 32 64 1259 1637 2518 3274 5036 6548 10072 13096 20144 26192 40288 52384 80576 104768 2060983 4121966 8243932 16487864 32975728 65951456 131902912