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12945952 = 251372953
BaseRepresentation
bin110001011000…
…101000100000
3220100201111201
4301120220200
511303232302
61141250544
7215016205
oct61305040
926321451
1012945952
117342538
124403a54
1328b3736
141a0dcac
15120ac87
hexc58a20

12945952 has 24 divisors (see below), whose sum is σ = 25682076. Its totient is φ = 6423552.

The previous prime is 12945937. The next prime is 12945971. The reversal of 12945952 is 25954921.

It can be written as a sum of positive squares in 2 ways, for example, as 12362256 + 583696 = 3516^2 + 764^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2908 + ... + 5860.

Almost surely, 212945952 is an apocalyptic number.

It is an amenable number.

12945952 is a deficient number, since it is larger than the sum of its proper divisors (12736124).

12945952 is a wasteful number, since it uses less digits than its factorization.

12945952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100 (or 3092 counting only the distinct ones).

The product of its digits is 32400, while the sum is 37.

The square root of 12945952 is about 3598.0483598751. The cubic root of 12945952 is about 234.8071573226.

The spelling of 12945952 in words is "twelve million, nine hundred forty-five thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 32 137 274 548 1096 2192 2953 4384 5906 11812 23624 47248 94496 404561 809122 1618244 3236488 6472976 12945952