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12945359 = 7261271
BaseRepresentation
bin110001011000…
…011111001111
3220100200200202
4301120133033
511303222414
61141244115
7215014400
oct61303717
926320622
1012945359
117342049
12440363b
1328b339b
141a0d9a7
15120a9de
hexc587cf

12945359 has 18 divisors (see below), whose sum is σ = 15525432. Its totient is φ = 10760400.

The previous prime is 12945323. The next prime is 12945377. The reversal of 12945359 is 95354921.

It is not a de Polignac number, because 12945359 - 28 = 12945103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12945659) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 182294 + ... + 182364.

It is an arithmetic number, because the mean of its divisors is an integer number (862524).

Almost surely, 212945359 is an apocalyptic number.

12945359 is a deficient number, since it is larger than the sum of its proper divisors (2580073).

12945359 is an frugal number, since it uses more digits than its factorization.

12945359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 139 counting only the distinct ones).

The product of its digits is 48600, while the sum is 38.

The square root of 12945359 is about 3597.9659531463. The cubic root of 12945359 is about 234.8035720894.

The spelling of 12945359 in words is "twelve million, nine hundred forty-five thousand, three hundred fifty-nine".

Divisors: 1 7 49 61 71 427 497 2989 3479 3721 4331 26047 30317 182329 212219 264191 1849337 12945359