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580205681 = 115371107131
BaseRepresentation
bin100010100101010…
…011110001110001
31111102202111120022
4202211103301301
52142013040211
6133323453225
720243444516
oct4245236161
91442674508
10580205681
11278569130
12142387215
1393287c93
14570b330d
1535e0cbdb
hex22953c71

580205681 has 32 divisors (see below), whose sum is σ = 665127936. Its totient is φ = 501592000.

The previous prime is 580205663. The next prime is 580205683. The reversal of 580205681 is 186502085.

It is a happy number.

It is not a de Polignac number, because 580205681 - 214 = 580189297 is a prime.

It is a super-2 number, since 2×5802056812 = 673277264529347522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (580205683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4428986 + ... + 4429116.

It is an arithmetic number, because the mean of its divisors is an integer number (20785248).

Almost surely, 2580205681 is an apocalyptic number.

It is an amenable number.

580205681 is a deficient number, since it is larger than the sum of its proper divisors (84922255).

580205681 is a wasteful number, since it uses less digits than its factorization.

580205681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 580205681 is about 24087.4589984083. The cubic root of 580205681 is about 834.0536596122.

The spelling of 580205681 in words is "five hundred eighty million, two hundred five thousand, six hundred eighty-one".

Divisors: 1 11 53 71 107 131 583 781 1177 1441 3763 5671 6943 7597 9301 14017 41393 62381 76373 83567 102311 154187 402641 492953 742901 995207 4429051 5422483 8171911 10947277 52745971 580205681