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12742904 = 231592863
BaseRepresentation
bin110000100111…
…000011111000
3212222101222102
4300213003320
511230233104
61133042532
7213212216
oct60470370
925871872
1012742904
117213a29
124326448
1328421a5
141999cb6
1511baa1e
hexc270f8

12742904 has 8 divisors (see below), whose sum is σ = 23892960. Its totient is φ = 6371448.

The previous prime is 12742903. The next prime is 12742913. The reversal of 12742904 is 40924721.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12742903) by changing a digit.

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, 796424 + ... + 796439.

It is an arithmetic number, because the mean of its divisors is an integer number (2986620).

Almost surely, 212742904 is an apocalyptic number.

It is an amenable number.

12742904 is a deficient number, since it is larger than the sum of its proper divisors (11150056).

12742904 is a wasteful number, since it uses less digits than its factorization.

12742904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592869 (or 1592865 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12742904 is about 3569.7204372331. The cubic root of 12742904 is about 233.5730887088.

The spelling of 12742904 in words is "twelve million, seven hundred forty-two thousand, nine hundred four".

Divisors: 1 2 4 8 1592863 3185726 6371452 12742904