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12886975 = 522292251
BaseRepresentation
bin110001001010…
…001110111111
3220020201121101
4301022032333
511244340400
61140113531
7214352233
oct61121677
926221541
1012886975
1173021a2
1243958a7
13289293a
1419d65c3
1511e856a
hexc4a3bf

12886975 has 12 divisors (see below), whose sum is σ = 16056760. Its totient is φ = 10260000.

The previous prime is 12886967. The next prime is 12886987. The reversal of 12886975 is 57968821.

12886975 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12886975 - 23 = 12886967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4600 + ... + 6850.

Almost surely, 212886975 is an apocalyptic number.

12886975 is a deficient number, since it is larger than the sum of its proper divisors (3169785).

12886975 is a wasteful number, since it uses less digits than its factorization.

12886975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2485 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 12886975 is about 3589.8433113438. The cubic root of 12886975 is about 234.4500494473.

It can be divided in two parts, 12886 and 975, that added together give a triangular number (13861 = T166).

The spelling of 12886975 in words is "twelve million, eight hundred eighty-six thousand, nine hundred seventy-five".

Divisors: 1 5 25 229 1145 2251 5725 11255 56275 515479 2577395 12886975