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57568812 = 22375367193
BaseRepresentation
bin1101101110011…
…0111000101100
311000022210120020
43123212320230
5104214200222
65413522140
71266220050
oct333467054
9130283506
1057568812
112a550334
1217343350
13bc084b2
147907c60
1550c265c
hex36e6e2c

57568812 has 96 divisors (see below), whose sum is σ = 159570432. Its totient is φ = 15814656.

The previous prime is 57568807. The next prime is 57568813. The reversal of 57568812 is 21886575.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (57568813) 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, 298188 + ... + 298380.

It is an arithmetic number, because the mean of its divisors is an integer number (1662192).

Almost surely, 257568812 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 57568812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79785216).

57568812 is an abundant number, since it is smaller than the sum of its proper divisors (102001620).

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

57568812 is a wasteful number, since it uses less digits than its factorization.

57568812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 325 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 57568812 is about 7587.4114162868. The cubic root of 57568812 is about 386.1260382883.

The spelling of 57568812 in words is "fifty-seven million, five hundred sixty-eight thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 53 67 84 106 134 159 193 201 212 268 318 371 386 402 469 579 636 742 772 804 938 1113 1158 1351 1407 1484 1876 2226 2316 2702 2814 3551 4053 4452 5404 5628 7102 8106 10229 10653 12931 14204 16212 20458 21306 24857 25862 30687 38793 40916 42612 49714 51724 61374 71603 74571 77586 90517 99428 122748 143206 149142 155172 181034 214809 271551 286412 298284 362068 429618 543102 685343 859236 1086204 1370686 2056029 2741372 4112058 4797401 8224116 9594802 14392203 19189604 28784406 57568812