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12975207 = 374314369
BaseRepresentation
bin110001011111…
…110001100111
3220102012122020
4301133301213
511310201312
61142034223
7215200410
oct61376147
926365566
1012975207
117362513
124418973
1328c3b4b
141a1a807
15121478c
hexc5fc67

12975207 has 16 divisors (see below), whose sum is σ = 20232960. Its totient is φ = 7241472.

The previous prime is 12975191. The next prime is 12975211. The reversal of 12975207 is 70257921.

It is not a de Polignac number, because 12975207 - 24 = 12975191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12975217) 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, 6282 + ... + 8087.

It is an arithmetic number, because the mean of its divisors is an integer number (1264560).

Almost surely, 212975207 is an apocalyptic number.

12975207 is a deficient number, since it is larger than the sum of its proper divisors (7257753).

12975207 is a wasteful number, since it uses less digits than its factorization.

12975207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14422.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 12975207 is about 3602.1114641277. Note that the first 3 decimals coincide. The cubic root of 12975207 is about 234.9838950786.

The spelling of 12975207 in words is "twelve million, nine hundred seventy-five thousand, two hundred seven".

Divisors: 1 3 7 21 43 129 301 903 14369 43107 100583 301749 617867 1853601 4325069 12975207