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25791071268 = 2232149255939
BaseRepresentation
bin11000000001010001…
…001000010000100100
32110120102110011120210
4120001101020100210
5410310003240033
615503120055420
71602061326414
oct300121102044
973512404523
1025791071268
11aa35429636
124bb9464570
1325803b1321
14136946a644
15a0e383d63
hex601448424

25791071268 has 12 divisors (see below), whose sum is σ = 60179166320. Its totient is φ = 8597023752.

The previous prime is 25791071237. The next prime is 25791071329. The reversal of 25791071268 is 86217019752.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1074627958 + ... + 1074627981.

Almost surely, 225791071268 is an apocalyptic number.

It is an amenable number.

25791071268 is an abundant number, since it is smaller than the sum of its proper divisors (34388095052).

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

25791071268 is a wasteful number, since it uses less digits than its factorization.

25791071268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149255946 (or 2149255944 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 25791071268 in words is "twenty-five billion, seven hundred ninety-one million, seventy-one thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 2149255939 4298511878 6447767817 8597023756 12895535634 25791071268