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12456804932 = 22111321777631
BaseRepresentation
bin10111001100111101…
…11100001001000100
31012011010200020220122
423212132330021010
5201002420224212
65420024321112
7620456044355
oct134636741104
935133606818
1012456804932
1153125a5a10
1224b7913198
1312369a49c0
1486256bd2c
154cd905272
hex2e67bc244

12456804932 has 24 divisors (see below), whose sum is σ = 25610495232. Its totient is φ = 5226631200.

The previous prime is 12456804929. The next prime is 12456804949. The reversal of 12456804932 is 23940865421.

12456804932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×124568049322 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10888244 + ... + 10889387.

It is an arithmetic number, because the mean of its divisors is an integer number (1067103968).

Almost surely, 212456804932 is an apocalyptic number.

It is an amenable number.

12456804932 is an abundant number, since it is smaller than the sum of its proper divisors (13153690300).

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

12456804932 is a wasteful number, since it uses less digits than its factorization.

12456804932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21777659 (or 21777657 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 12456804932 in words is "twelve billion, four hundred fifty-six million, eight hundred four thousand, nine hundred thirty-two".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 21777631 43555262 87110524 239553941 283109203 479107882 566218406 958215764 1132436812 3114201233 6228402466 12456804932