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12913715 = 55348731
BaseRepresentation
bin110001010000…
…110000110011
3220022002021202
4301100300303
511301214330
61140441415
7214523213
oct61206063
926262252
1012913715
1173202a1
1243a926b
1328a1b69
141a02243
151201445
hexc50c33

12913715 has 8 divisors (see below), whose sum is σ = 15789168. Its totient is φ = 10135840.

The previous prime is 12913709. The next prime is 12913739. The reversal of 12913715 is 51731921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12913715 - 26 = 12913651 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24101 + ... + 24630.

It is an arithmetic number, because the mean of its divisors is an integer number (1973646).

Almost surely, 212913715 is an apocalyptic number.

12913715 is a deficient number, since it is larger than the sum of its proper divisors (2875453).

12913715 is an equidigital number, since it uses as much as digits as its factorization.

12913715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48789.

The product of its digits is 1890, while the sum is 29.

The square root of 12913715 is about 3593.5657778869. The cubic root of 12913715 is about 234.6120958338.

The spelling of 12913715 in words is "twelve million, nine hundred thirteen thousand, seven hundred fifteen".

Divisors: 1 5 53 265 48731 243655 2582743 12913715