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12611925928 = 237792850797
BaseRepresentation
bin10111011111011101…
…01011011110101000
31012112221120012220201
423233232223132220
5201312123112203
65443245201544
7624351413230
oct135756533650
935487505821
1012611925928
115392115688
12253b8602b4
13125cb77784
14878dcacc0
154dc346e1d
hex2efbab7a8

12611925928 has 32 divisors (see below), whose sum is σ = 27367660800. Its totient is φ = 5336690112.

The previous prime is 12611925923. The next prime is 12611925941. The reversal of 12611925928 is 82952911621.

It is a happy number.

It is a super-2 number, since 2×126119259282 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12611925923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420975 + ... + 1429822.

It is an arithmetic number, because the mean of its divisors is an integer number (855239400).

Almost surely, 212611925928 is an apocalyptic number.

It is an amenable number.

12611925928 is an abundant number, since it is smaller than the sum of its proper divisors (14755734872).

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

12611925928 is a wasteful number, since it uses less digits than its factorization.

12611925928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850889 (or 2850885 counting only the distinct ones).

The product of its digits is 155520, while the sum is 46.

The spelling of 12611925928 in words is "twelve billion, six hundred eleven million, nine hundred twenty-five thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 28 56 79 158 316 553 632 1106 2212 4424 2850797 5701594 11403188 19955579 22806376 39911158 79822316 159644632 225212963 450425926 900851852 1576490741 1801703704 3152981482 6305962964 12611925928