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566668880 = 2457083361
BaseRepresentation
bin100001110001101…
…010111001010000
31110111021202120022
4201301222321100
52130031401010
6132121403012
720020414601
oct4161527120
91414252508
10566668880
11270962798
12139939468
139052863b
145538bda8
1534b36d55
hex21c6ae50

566668880 has 20 divisors (see below), whose sum is σ = 1317505332. Its totient is φ = 226667520.

The previous prime is 566668877. The next prime is 566668967. The reversal of 566668880 is 88866665.

It can be written as a sum of positive squares in 2 ways, for example, as 87759424 + 478909456 = 9368^2 + 21884^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×5666688802 = 642227239120908800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3541601 + ... + 3541760.

Almost surely, 2566668880 is an apocalyptic number.

It is an amenable number.

566668880 is an abundant number, since it is smaller than the sum of its proper divisors (750836452).

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

566668880 is a wasteful number, since it uses less digits than its factorization.

566668880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7083374 (or 7083368 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The square root of 566668880 is about 23804.8079177296. The cubic root of 566668880 is about 827.5161042615.

The spelling of 566668880 in words is "five hundred sixty-six million, six hundred sixty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 7083361 14166722 28333444 35416805 56666888 70833610 113333776 141667220 283334440 566668880