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12799515084 = 22317251249971
BaseRepresentation
bin10111110101110100…
…10001100111001100
31020001000112201212020
423322322101213030
5202203133440314
65514030010140
7632120040336
oct137272214714
936030481766
1012799515084
115478aa1144
122592646950
13128c9a7a85
14895c9c456
154eda4dda9
hex2fae919cc

12799515084 has 48 divisors (see below), whose sum is σ = 31748443776. Its totient is φ = 3999520000.

The previous prime is 12799515077. The next prime is 12799515089. The reversal of 12799515084 is 48051599721.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (12799515089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73782 + ... + 176189.

It is an arithmetic number, because the mean of its divisors is an integer number (661425912).

Almost surely, 212799515084 is an apocalyptic number.

It is an amenable number.

12799515084 is an abundant number, since it is smaller than the sum of its proper divisors (18948928692).

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

12799515084 is a wasteful number, since it uses less digits than its factorization.

12799515084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250246 (or 250244 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 51.

The spelling of 12799515084 in words is "twelve billion, seven hundred ninety-nine million, five hundred fifteen thousand, eighty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 251 502 753 1004 1506 3012 4267 8534 12801 17068 25602 51204 249971 499942 749913 999884 1499826 2999652 4249507 8499014 12748521 16998028 25497042 50994084 62742721 125485442 188228163 250970884 376456326 752912652 1066626257 2133252514 3199878771 4266505028 6399757542 12799515084