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12513751264 = 25755864961
BaseRepresentation
bin10111010011110000…
…01011000011100000
31012022002211102121001
423221320023003200
5201112010020024
65425421041344
7622050062560
oct135170130340
935262742531
1012513751264
1153417605a3
1225129b6254
131245722a61
14869d52da0
154d3903244
hex2e9e0b0e0

12513751264 has 24 divisors (see below), whose sum is σ = 28155940848. Its totient is φ = 5363036160.

The previous prime is 12513751231. The next prime is 12513751279. The reversal of 12513751264 is 46215731521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27932257 + ... + 27932704.

It is an arithmetic number, because the mean of its divisors is an integer number (1173164202).

Almost surely, 212513751264 is an apocalyptic number.

12513751264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12513751264 is an abundant number, since it is smaller than the sum of its proper divisors (15642189584).

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

12513751264 is an equidigital number, since it uses as much as digits as its factorization.

12513751264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55864978 (or 55864970 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The spelling of 12513751264 in words is "twelve billion, five hundred thirteen million, seven hundred fifty-one thousand, two hundred sixty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 55864961 111729922 223459844 391054727 446919688 782109454 893839376 1564218908 1787678752 3128437816 6256875632 12513751264