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12955112 = 2319292939
BaseRepresentation
bin110001011010…
…110111101000
3220101012001222
4301122313220
511304030422
61141401212
7215055002
oct61326750
926335058
1012955112
117349405
124409208
1328b7961
141a13372
15120d842
hexc5ade8

12955112 has 32 divisors (see below), whose sum is σ = 26460000. Its totient is φ = 5923008.

The previous prime is 12955109. The next prime is 12955121. The reversal of 12955112 is 21155921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2939 + ... + 5877.

It is an arithmetic number, because the mean of its divisors is an integer number (826875).

Almost surely, 212955112 is an apocalyptic number.

12955112 is the 2939-th pentagonal number.

It is an amenable number.

12955112 is an abundant number, since it is smaller than the sum of its proper divisors (13504888).

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

12955112 is a wasteful number, since it uses less digits than its factorization.

12955112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993 (or 2989 counting only the distinct ones).

The product of its digits is 900, while the sum is 26.

The square root of 12955112 is about 3599.3210470865. The cubic root of 12955112 is about 234.8625240885.

The spelling of 12955112 in words is "twelve million, nine hundred fifty-five thousand, one hundred twelve".

Divisors: 1 2 4 8 19 29 38 58 76 116 152 232 551 1102 2204 2939 4408 5878 11756 23512 55841 85231 111682 170462 223364 340924 446728 681848 1619389 3238778 6477556 12955112