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14931690 = 235539391
BaseRepresentation
bin111000111101…
…011011101010
31001002121102120
4320331123222
512310303230
61252012110
7240626424
oct70753352
931077376
1014931690
118479444
125001036
13312a527
141da9814
15149e310
hexe3d6ea

14931690 has 32 divisors (see below), whose sum is σ = 36516096. Its totient is φ = 3906240.

The previous prime is 14931671. The next prime is 14931703. The reversal of 14931690 is 9613941.

It is a super-2 number, since 2×149316902 = 445910732512200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3106 + ... + 6285.

It is an arithmetic number, because the mean of its divisors is an integer number (1141128).

Almost surely, 214931690 is an apocalyptic number.

14931690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14931690 is an abundant number, since it is smaller than the sum of its proper divisors (21584406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14931690 is a wasteful number, since it uses less digits than its factorization.

14931690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9454.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 14931690 is about 3864.1545000168. The cubic root of 14931690 is about 246.2462667028.

The spelling of 14931690 in words is "fourteen million, nine hundred thirty-one thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 53 106 159 265 318 530 795 1590 9391 18782 28173 46955 56346 93910 140865 281730 497723 995446 1493169 2488615 2986338 4977230 7465845 14931690