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568528164 = 223215792449
BaseRepresentation
bin100001111000110…
…000110100100100
31110121210020000200
4201320300310210
52131020400124
6132225310500
720042260341
oct4170606444
91417706020
10568528164
11271a12696
1213a495430
1390a299c9
14557137c8
1534da2bc9
hex21e30d24

568528164 has 18 divisors (see below), whose sum is σ = 1437112950. Its totient is φ = 189509376.

The previous prime is 568528159. The next prime is 568528211. The reversal of 568528164 is 461825865.

568528164 is a `hidden beast` number, since 5 + 68 + 528 + 1 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 430230564 + 138297600 = 20742^2 + 11760^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×5685281642 = 646448546522421792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7896189 + ... + 7896260.

Almost surely, 2568528164 is an apocalyptic number.

It is an amenable number.

568528164 is an abundant number, since it is smaller than the sum of its proper divisors (868584786).

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

568528164 is a wasteful number, since it uses less digits than its factorization.

568528164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15792459 (or 15792454 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 568528164 is about 23843.8286355191. The cubic root of 568528164 is about 828.4201641256.

The spelling of 568528164 in words is "five hundred sixty-eight million, five hundred twenty-eight thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 36 15792449 31584898 47377347 63169796 94754694 142132041 189509388 284264082 568528164