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12976572 = 2237229761
BaseRepresentation
bin110001100000…
…000110111100
3220102021111210
4301200012330
511310222242
61142044420
7215204400
oct61400674
926367453
1012976572
117363544
124419710
1328c465b
141a1b100
151214d9c
hexc601bc

12976572 has 72 divisors (see below), whose sum is σ = 36484560. Its totient is φ = 3575040.

The previous prime is 12976567. The next prime is 12976643. The reversal of 12976572 is 27567921.

It is a self number, because there is not a number n which added to its sum of digits gives 12976572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16672 + ... + 17432.

It is an arithmetic number, because the mean of its divisors is an integer number (506730).

Almost surely, 212976572 is an apocalyptic number.

12976572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12976572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18242280).

12976572 is an abundant number, since it is smaller than the sum of its proper divisors (23507988).

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

12976572 is a wasteful number, since it uses less digits than its factorization.

12976572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 802 counting only the distinct ones).

The product of its digits is 52920, while the sum is 39.

The square root of 12976572 is about 3602.3009313493. The cubic root of 12976572 is about 234.9921349412.

The spelling of 12976572 in words is "twelve million, nine hundred seventy-six thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 29 42 49 58 84 87 98 116 147 174 196 203 294 348 406 588 609 761 812 1218 1421 1522 2283 2436 2842 3044 4263 4566 5327 5684 8526 9132 10654 15981 17052 21308 22069 31962 37289 44138 63924 66207 74578 88276 111867 132414 149156 154483 223734 264828 308966 447468 463449 617932 926898 1081381 1853796 2162762 3244143 4325524 6488286 12976572