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12768475 = 521926881
BaseRepresentation
bin110000101101…
…010011011011
3220000201001111
4300231103123
511232042400
61133401151
7213346606
oct60552333
926021044
1012768475
117231165
1243391b7
132850a15
1419a533d
1511c33ba
hexc2d4db

12768475 has 12 divisors (see below), whose sum is σ = 16666840. Its totient is φ = 9676800.

The previous prime is 12768467. The next prime is 12768487. The reversal of 12768475 is 57486721.

It is not a de Polignac number, because 12768475 - 23 = 12768467 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 12966 + ... + 13915.

Almost surely, 212768475 is an apocalyptic number.

12768475 is a deficient number, since it is larger than the sum of its proper divisors (3898365).

12768475 is a wasteful number, since it uses less digits than its factorization.

12768475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26910 (or 26905 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 12768475 is about 3573.3002952453. The cubic root of 12768475 is about 233.7292202257.

The spelling of 12768475 in words is "twelve million, seven hundred sixty-eight thousand, four hundred seventy-five".

Divisors: 1 5 19 25 95 475 26881 134405 510739 672025 2553695 12768475