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566680 = 23531457
BaseRepresentation
bin10001010010110011000
31001210100011
42022112120
5121113210
620051304
74550062
oct2122630
91053304
10566680
11357834
12233b34
1316ac1a
1410a732
15b2d8a
hex8a598

566680 has 32 divisors (see below), whose sum is σ = 1319040. Its totient is φ = 218880.

The previous prime is 566677. The next prime is 566681. The reversal of 566680 is 86665.

It is a super-2 number, since 2×5666802 = 642252444800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012 + ... + 1468.

It is an arithmetic number, because the mean of its divisors is an integer number (41220).

2566680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659520).

566680 is an abundant number, since it is smaller than the sum of its proper divisors (752360).

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

566680 is a wasteful number, since it uses less digits than its factorization.

566680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 566680 is about 752.7815088058. The cubic root of 566680 is about 82.7521517134.

The spelling of 566680 in words is "five hundred sixty-six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 457 620 914 1240 1828 2285 3656 4570 9140 14167 18280 28334 56668 70835 113336 141670 283340 566680