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12944975 = 522347479
BaseRepresentation
bin110001011000…
…011001001111
3220100200011112
4301120121033
511303214400
61141242235
7215013311
oct61303117
926320145
1012944975
11734182a
12440337b
1328b3164
141a0d7b1
15120a835
hexc5864f

12944975 has 24 divisors (see below), whose sum is σ = 17141760. Its totient is φ = 9674720.

The previous prime is 12944963. The next prime is 12944977. The reversal of 12944975 is 57944921.

12944975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12944975 - 24 = 12944959 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12944977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26786 + ... + 27264.

It is an arithmetic number, because the mean of its divisors is an integer number (714240).

Almost surely, 212944975 is an apocalyptic number.

12944975 is a deficient number, since it is larger than the sum of its proper divisors (4196785).

12944975 is a wasteful number, since it uses less digits than its factorization.

12944975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 554 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 12944975 is about 3597.9125892662. The cubic root of 12944975 is about 234.8012503960.

The spelling of 12944975 in words is "twelve million, nine hundred forty-four thousand, nine hundred seventy-five".

Divisors: 1 5 23 25 47 115 235 479 575 1081 1175 2395 5405 11017 11975 22513 27025 55085 112565 275425 517799 562825 2588995 12944975