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12901892432 = 2411135638939
BaseRepresentation
bin11000000010000001…
…10100000101010000
31020022011012001011212
430001000310011100
5202410341024212
65532124155252
7634502163512
oct140100640520
936264161155
1012901892432
115520866820
122600998b28
1312a7c716a0
148a570bbb2
15507a22e22
hex301034150

12901892432 has 40 divisors (see below), whose sum is σ = 29367599520. Its totient is φ = 5413380480.

The previous prime is 12901892417. The next prime is 12901892461. The reversal of 12901892432 is 23429810921.

It is a self number, because there is not a number n which added to its sum of digits gives 12901892432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2817182 + ... + 2821757.

It is an arithmetic number, because the mean of its divisors is an integer number (734189988).

Almost surely, 212901892432 is an apocalyptic number.

It is an amenable number.

12901892432 is an abundant number, since it is smaller than the sum of its proper divisors (16465707088).

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

12901892432 is a wasteful number, since it uses less digits than its factorization.

12901892432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5638971 (or 5638965 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 12901892432 in words is "twelve billion, nine hundred one million, eight hundred ninety-two thousand, four hundred thirty-two".

Divisors: 1 2 4 8 11 13 16 22 26 44 52 88 104 143 176 208 286 572 1144 2288 5638939 11277878 22555756 45111512 62028329 73306207 90223024 124056658 146612414 248113316 293224828 496226632 586449656 806368277 992453264 1172899312 1612736554 3225473108 6450946216 12901892432