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57387008 = 21174003
BaseRepresentation
bin1101101011101…
…0100000000000
310222222120011202
43122322200000
5104142341013
65410000332
71264532030
oct332724000
9128876152
1057387008
112a436788
12172760a8
13bb73813
14789b8c0
155088858
hex36ba800

57387008 has 48 divisors (see below), whose sum is σ = 131171040. Its totient is φ = 24588288.

The previous prime is 57386993. The next prime is 57387013. The reversal of 57387008 is 80078375.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12335 + ... + 16337.

It is an arithmetic number, because the mean of its divisors is an integer number (2732730).

Almost surely, 257387008 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 57387008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65585520).

57387008 is an abundant number, since it is smaller than the sum of its proper divisors (73784032).

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

57387008 is an equidigital number, since it uses as much as digits as its factorization.

57387008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032 (or 4012 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 57387008 is about 7575.4213084158. The cubic root of 57387008 is about 385.7191438672.

The spelling of 57387008 in words is "fifty-seven million, three hundred eighty-seven thousand, eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1024 1792 2048 3584 4003 7168 8006 14336 16012 28021 32024 56042 64048 112084 128096 224168 256192 448336 512384 896672 1024768 1793344 2049536 3586688 4099072 7173376 8198144 14346752 28693504 57387008