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12568401 = 323314219
BaseRepresentation
bin101111111100…
…011101010001
3212122112121100
4233330131101
511204142101
61125215013
7211554366
oct57743521
925575540
1012568401
11710490a
124261469
1327b0931
14195246d
151183e86
hexbfc751

12568401 has 12 divisors (see below), whose sum is σ = 18213520. Its totient is φ = 8351640.

The previous prime is 12568399. The next prime is 12568417. The reversal of 12568401 is 10486521.

12568401 is a `hidden beast` number, since 1 + 256 + 8 + 401 = 666.

It is not a de Polignac number, because 12568401 - 21 = 12568399 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12568421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 870 + ... + 5088.

Almost surely, 212568401 is an apocalyptic number.

It is an amenable number.

12568401 is a deficient number, since it is larger than the sum of its proper divisors (5645119).

12568401 is a wasteful number, since it uses less digits than its factorization.

12568401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556 (or 4553 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12568401 is about 3545.1940708514. The cubic root of 12568401 is about 232.5019909646.

The spelling of 12568401 in words is "twelve million, five hundred sixty-eight thousand, four hundred one".

Divisors: 1 3 9 331 993 2979 4219 12657 37971 1396489 4189467 12568401