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57309090654 = 23376713032957
BaseRepresentation
bin110101010111111000…
…110101001101011110
312110220222011110002010
4311113320311031132
51414332111400104
642154420412050
74066113142644
oct652770651536
9173828143063
1057309090654
1122339540042
12b134847026
13553410743a
142ab9349194
1517563b6489
hexd57e3535e

57309090654 has 64 divisors (see below), whose sum is σ = 119605049856. Its totient is φ = 18289079424.

The previous prime is 57309090649. The next prime is 57309090667. The reversal of 57309090654 is 45609090375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19379344 + ... + 19382300.

It is an arithmetic number, because the mean of its divisors is an integer number (1868828904).

Almost surely, 257309090654 is an apocalyptic number.

57309090654 is an abundant number, since it is smaller than the sum of its proper divisors (62295959202).

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

57309090654 is a wasteful number, since it uses less digits than its factorization.

57309090654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369.

The product of its (nonzero) digits is 1020600, while the sum is 48.

The spelling of 57309090654 in words is "fifty-seven billion, three hundred nine million, ninety thousand, six hundred fifty-four".

Divisors: 1 2 3 6 37 67 74 111 134 201 222 402 1303 2479 2606 2957 3909 4958 5914 7437 7818 8871 14874 17742 48211 87301 96422 109409 144633 174602 198119 218818 261903 289266 328227 396238 523806 594357 656454 1188714 3230137 3852971 6460274 7330403 7705942 9690411 11558913 14660806 19380822 21991209 23117826 43982418 142559927 258149057 285119854 427679781 516298114 774447171 855359562 1548894342 9551515109 19103030218 28654545327 57309090654