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12506916 = 2231042243
BaseRepresentation
bin101111101101…
…011100100100
3212112102021010
4233231130210
511200210131
61124022220
7211210212
oct57553444
925472233
1012506916
1170726a4
124231970
13278b956
141937cb2
151170b46
hexbed724

12506916 has 12 divisors (see below), whose sum is σ = 29182832. Its totient is φ = 4168968.

The previous prime is 12506881. The next prime is 12506929. The reversal of 12506916 is 61960521.

It is a tau number, because it is divible by the number of its divisors (12).

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, 521110 + ... + 521133.

Almost surely, 212506916 is an apocalyptic number.

It is an amenable number.

12506916 is an abundant number, since it is smaller than the sum of its proper divisors (16675916).

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

12506916 is a wasteful number, since it uses less digits than its factorization.

12506916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042250 (or 1042248 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12506916 is about 3536.5118407832. The cubic root of 12506916 is about 232.1222354271.

The spelling of 12506916 in words is "twelve million, five hundred six thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 1042243 2084486 3126729 4168972 6253458 12506916