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12828974526 = 2321096538723
BaseRepresentation
bin10111111001010101…
…01001110110111110
31020010001222102121200
423330222221312332
5202233204141101
65521001240330
7632625325044
oct137452516676
936101872550
1012828974526
115493692495
1225a04930a6
131295b209b4
14899b6a394
1550141c986
hex2fcaa9dbe

12828974526 has 24 divisors (see below), whose sum is σ = 28051125960. Its totient is φ = 4237091856.

The previous prime is 12828974513. The next prime is 12828974539. The reversal of 12828974526 is 62547982821.

12828974526 is a `hidden beast` number, since 1 + 2 + 8 + 28 + 97 + 4 + 526 = 666.

It is an interprime number because it is at equal distance from previous prime (12828974513) and next prime (12828974539).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3267400 + ... + 3271323.

It is an arithmetic number, because the mean of its divisors is an integer number (1168796915).

Almost surely, 212828974526 is an apocalyptic number.

12828974526 is an abundant number, since it is smaller than the sum of its proper divisors (15222151434).

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

12828974526 is a wasteful number, since it uses less digits than its factorization.

12828974526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538840 (or 6538837 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 12828974526 in words is "twelve billion, eight hundred twenty-eight million, nine hundred seventy-four thousand, five hundred twenty-six".

Divisors: 1 2 3 6 9 18 109 218 327 654 981 1962 6538723 13077446 19616169 39232338 58848507 117697014 712720807 1425441614 2138162421 4276324842 6414487263 12828974526