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12404928172 = 2271334079473
BaseRepresentation
bin10111000110110010…
…00010111010101100
31012000112001122101011
423203121002322230
5200401130200142
65410532355004
7616256102230
oct134331027254
935015048334
1012404928172
11529629315a
1224a2475a64
1312290102b0
148597065c0
154c90a9417
hex2e3642eac

12404928172 has 24 divisors (see below), whose sum is σ = 26718307616. Its totient is φ = 4907443968.

The previous prime is 12404928161. The next prime is 12404928181. The reversal of 12404928172 is 27182940421.

12404928172 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-3 number, since 3×124049281723 (a number of 31 digits) contains 333 as substring.

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, 17039373 + ... + 17040100.

Almost surely, 212404928172 is an apocalyptic number.

It is an amenable number.

12404928172 is an abundant number, since it is smaller than the sum of its proper divisors (14313379444).

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

12404928172 is a wasteful number, since it uses less digits than its factorization.

12404928172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34079497 (or 34079495 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 12404928172 in words is "twelve billion, four hundred four million, nine hundred twenty-eight thousand, one hundred seventy-two".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 34079473 68158946 136317892 238556311 443033149 477112622 886066298 954225244 1772132596 3101232043 6202464086 12404928172