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568163380 = 225731013853
BaseRepresentation
bin100001110111010…
…111110000110100
31110121002200122011
4201313113300310
52130422212010
6132213414004
720036211001
oct4167276064
91417080564
10568163380
11271793614
1213a33a304
139092c965
145565a8a8
1534d2ea8a
hex21dd7c34

568163380 has 48 divisors (see below), whose sum is σ = 1221779664. Its totient is φ = 221875200.

The previous prime is 568163359. The next prime is 568163399. The reversal of 568163380 is 83361865.

It can be written as a sum of positive squares in 8 ways, for example, as 181333156 + 386830224 = 13466^2 + 19668^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 145534 + ... + 149386.

It is an arithmetic number, because the mean of its divisors is an integer number (25453743).

Almost surely, 2568163380 is an apocalyptic number.

It is an amenable number.

568163380 is an abundant number, since it is smaller than the sum of its proper divisors (653616284).

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

568163380 is a wasteful number, since it uses less digits than its factorization.

568163380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036 (or 4034 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 568163380 is about 23836.1779654373. The cubic root of 568163380 is about 828.2429468269.

The spelling of 568163380 in words is "five hundred sixty-eight million, one hundred sixty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 73 101 146 202 292 365 404 505 730 1010 1460 2020 3853 7373 7706 14746 15412 19265 29492 36865 38530 73730 77060 147460 281269 389153 562538 778306 1125076 1406345 1556612 1945765 2812690 3891530 5625380 7783060 28408169 56816338 113632676 142040845 284081690 568163380