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12911252 = 2231104123
BaseRepresentation
bin110001010000…
…001010010100
3220021221220112
4301100022110
511301130002
61140422152
7214513064
oct61201224
926257815
1012911252
117319462
1243a7958
1328a09c3
141a013a4
151200852
hexc50294

12911252 has 12 divisors (see below), whose sum is σ = 23323776. Its totient is φ = 6247320.

The previous prime is 12911251. The next prime is 12911263. The reversal of 12911252 is 25211921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12911251) 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, 51938 + ... + 52185.

It is an arithmetic number, because the mean of its divisors is an integer number (1943648).

Almost surely, 212911252 is an apocalyptic number.

It is an amenable number.

12911252 is a deficient number, since it is larger than the sum of its proper divisors (10412524).

12911252 is a wasteful number, since it uses less digits than its factorization.

12911252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104158 (or 104156 counting only the distinct ones).

The product of its digits is 360, while the sum is 23.

The square root of 12911252 is about 3593.2230657169. The cubic root of 12911252 is about 234.5971792295.

The spelling of 12911252 in words is "twelve million, nine hundred eleven thousand, two hundred fifty-two".

Divisors: 1 2 4 31 62 124 104123 208246 416492 3227813 6455626 12911252