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12568985 = 5111317579
BaseRepresentation
bin101111111100…
…100110011001
3212122120101222
4233330212121
511204201420
61125221425
7211556162
oct57744631
925576358
1012568985
1171052a0
124261875
1327b0c90
141952769
151184225
hexbfc999

12568985 has 16 divisors (see below), whose sum is σ = 17720640. Its totient is φ = 8437440.

The previous prime is 12568973. The next prime is 12568991. The reversal of 12568985 is 58986521.

It is not a de Polignac number, because 12568985 - 220 = 11520409 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8075 + ... + 9504.

It is an arithmetic number, because the mean of its divisors is an integer number (1107540).

Almost surely, 212568985 is an apocalyptic number.

It is an amenable number.

12568985 is a deficient number, since it is larger than the sum of its proper divisors (5151655).

12568985 is a wasteful number, since it uses less digits than its factorization.

12568985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17608.

The product of its digits is 172800, while the sum is 44.

The square root of 12568985 is about 3545.2764349201. The cubic root of 12568985 is about 232.5055920342.

The spelling of 12568985 in words is "twelve million, five hundred sixty-eight thousand, nine hundred eighty-five".

Divisors: 1 5 11 13 55 65 143 715 17579 87895 193369 228527 966845 1142635 2513797 12568985