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12931134 = 2319671693
BaseRepresentation
bin110001010101…
…000000111110
3220022222011220
4301111000332
511302244014
61141054210
7214625046
oct61250076
926288156
1012931134
117332397
1243b7366
1328a9a78
141a08726
1512066a9
hexc5503e

12931134 has 32 divisors (see below), whose sum is σ = 27646080. Its totient is φ = 4020192.

The previous prime is 12931133. The next prime is 12931181. The reversal of 12931134 is 43113921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12931133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6792 + ... + 8484.

It is an arithmetic number, because the mean of its divisors is an integer number (863940).

Almost surely, 212931134 is an apocalyptic number.

12931134 is an abundant number, since it is smaller than the sum of its proper divisors (14714946).

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

12931134 is a wasteful number, since it uses less digits than its factorization.

12931134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784.

The product of its digits is 648, while the sum is 24.

The square root of 12931134 is about 3595.9885984246. The cubic root of 12931134 is about 234.7175359798.

The spelling of 12931134 in words is "twelve million, nine hundred thirty-one thousand, one hundred thirty-four".

Divisors: 1 2 3 6 19 38 57 67 114 134 201 402 1273 1693 2546 3386 3819 5079 7638 10158 32167 64334 96501 113431 193002 226862 340293 680586 2155189 4310378 6465567 12931134