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12575397 = 319415381
BaseRepresentation
bin101111111110…
…001010100101
3212122220012110
4233332022211
511204403042
61125311233
7211613652
oct57761245
925586173
1012575397
11710a09a
124265519
1327b3b83
141954c29
15118609c
hexbfe2a5

12575397 has 16 divisors (see below), whose sum is σ = 18083520. Its totient is φ = 7747200.

The previous prime is 12575383. The next prime is 12575399. The reversal of 12575397 is 79357521.

It is not a de Polignac number, because 12575397 - 212 = 12571301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12575399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (1130220).

Almost surely, 212575397 is an apocalyptic number.

It is an amenable number.

12575397 is a deficient number, since it is larger than the sum of its proper divisors (5508123).

12575397 is a wasteful number, since it uses less digits than its factorization.

12575397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5444.

The product of its digits is 66150, while the sum is 39.

The square root of 12575397 is about 3546.1806214574. The cubic root of 12575397 is about 232.5451224713.

The spelling of 12575397 in words is "twelve million, five hundred seventy-five thousand, three hundred ninety-seven".

Divisors: 1 3 19 41 57 123 779 2337 5381 16143 102239 220621 306717 661863 4191799 12575397