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13057990 = 2511118709
BaseRepresentation
bin110001110011…
…111111000110
3220120102012021
4301303333012
511320323430
61143513354
7215663641
oct61637706
926512167
1013057990
117409730
12445885a
13292272a
141a3ca58
15122e07a
hexc73fc6

13057990 has 16 divisors (see below), whose sum is σ = 25641360. Its totient is φ = 4748320.

The previous prime is 13057973. The next prime is 13058009. The reversal of 13057990 is 9975031.

It is a super-2 number, since 2×130579902 = 341022205680200, which contains 22 as substring.

It is a congruent 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, 59245 + ... + 59464.

It is an arithmetic number, because the mean of its divisors is an integer number (1602585).

Almost surely, 213057990 is an apocalyptic number.

13057990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13057990 is a deficient number, since it is larger than the sum of its proper divisors (12583370).

13057990 is a wasteful number, since it uses less digits than its factorization.

13057990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118727.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 13057990 is about 3613.5840933898. The cubic root of 13057990 is about 235.4825755714.

The spelling of 13057990 in words is "thirteen million, fifty-seven thousand, nine hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 118709 237418 593545 1187090 1305799 2611598 6528995 13057990