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307931112 = 23331425607
BaseRepresentation
bin10010010110101…
…010011111101000
3210110102112002000
4102112222133220
51112312243422
650320011000
710426241226
oct2226523750
9713375060
10307931112
11148901225
1287160a60
134ba46a78
142cc79b16
151c078cac
hex125aa7e8

307931112 has 32 divisors (see below), whose sum is σ = 855364800. Its totient is φ = 102643632.

The previous prime is 307931093. The next prime is 307931147. The reversal of 307931112 is 211139703.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 712588 + ... + 713019.

It is an arithmetic number, because the mean of its divisors is an integer number (26730150).

Almost surely, 2307931112 is an apocalyptic number.

It is an amenable number.

307931112 is an abundant number, since it is smaller than the sum of its proper divisors (547433688).

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

307931112 is a wasteful number, since it uses less digits than its factorization.

307931112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425622 (or 1425612 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 307931112 is about 17547.9660359826. The cubic root of 307931112 is about 675.2809891864.

It can be divided in two parts, 3079 and 31112, that added together give a triangular number (34191 = T261).

The spelling of 307931112 in words is "three hundred seven million, nine hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 1425607 2851214 4276821 5702428 8553642 11404856 12830463 17107284 25660926 34214568 38491389 51321852 76982778 102643704 153965556 307931112