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12925144 = 231615643
BaseRepresentation
bin110001010011…
…100011011000
3220022122222001
4301103203120
511302101034
61141010344
7214601431
oct61234330
926278861
1012925144
117328941
1243b39b4
1328a711b
141a06488
151204a14
hexc538d8

12925144 has 8 divisors (see below), whose sum is σ = 24234660. Its totient is φ = 6462568.

The previous prime is 12925139. The next prime is 12925169. The reversal of 12925144 is 44152921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 807814 + ... + 807829.

Almost surely, 212925144 is an apocalyptic number.

It is an amenable number.

12925144 is a deficient number, since it is larger than the sum of its proper divisors (11309516).

12925144 is a wasteful number, since it uses less digits than its factorization.

12925144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615649 (or 1615645 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 12925144 is about 3595.1556294547. The cubic root of 12925144 is about 234.6812881873.

The spelling of 12925144 in words is "twelve million, nine hundred twenty-five thousand, one hundred forty-four".

Divisors: 1 2 4 8 1615643 3231286 6462572 12925144