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12775015015 = 575576131069
BaseRepresentation
bin10111110010111001…
…10100001001100111
31012222022110000002021
423321130310021213
5202130400440030
65511352524011
7631401556510
oct137134641147
935868400067
1012775015015
115466187954
1225863b0607
1312878aa2a9
14892921a07
154eb80e97a
hex2f9734267

12775015015 has 32 divisors (see below), whose sum is σ = 17596552320. Its totient is φ = 8721851904.

The previous prime is 12775014991. The next prime is 12775015073. The reversal of 12775015015 is 51051057721.

It is a cyclic number.

It is not a de Polignac number, because 12775015015 - 25 = 12775014983 is a prime.

12775015015 is a modest number, since divided by 15015 gives 12775 as remainder.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 11949901 + ... + 11950969.

It is an arithmetic number, because the mean of its divisors is an integer number (549892260).

Almost surely, 212775015015 is an apocalyptic number.

12775015015 is a deficient number, since it is larger than the sum of its proper divisors (4821537305).

12775015015 is a wasteful number, since it uses less digits than its factorization.

12775015015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251.

The product of its (nonzero) digits is 12250, while the sum is 34.

The spelling of 12775015015 in words is "twelve billion, seven hundred seventy-five million, fifteen thousand, fifteen".

Divisors: 1 5 7 35 557 613 1069 2785 3065 3899 4291 5345 7483 19495 21455 37415 341441 595433 655297 1707205 2390087 2977165 3276485 4168031 4587079 11950435 20840155 22935395 365000429 1825002145 2555003003 12775015015