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13079857 = 712714713
BaseRepresentation
bin110001111001…
…010100110001
3220121112012011
4301321110301
511322023412
61144202521
7216114460
oct61712461
926545164
1013079857
1174240aa
124469441
13292c67b
141a469d7
1512357a7
hexc79531

13079857 has 8 divisors (see below), whose sum is σ = 15067136. Its totient is φ = 11122272.

The previous prime is 13079839. The next prime is 13079873. The reversal of 13079857 is 75897031.

13079857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13079857 - 211 = 13077809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13079837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6468 + ... + 8245.

It is an arithmetic number, because the mean of its divisors is an integer number (1883392).

Almost surely, 213079857 is an apocalyptic number.

It is an amenable number.

13079857 is a deficient number, since it is larger than the sum of its proper divisors (1987279).

13079857 is a wasteful number, since it uses less digits than its factorization.

13079857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14847.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 13079857 is about 3616.6084941558. The cubic root of 13079857 is about 235.6139491800.

The spelling of 13079857 in words is "thirteen million, seventy-nine thousand, eight hundred fifty-seven".

Divisors: 1 7 127 889 14713 102991 1868551 13079857