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57380018 = 244364763
BaseRepresentation
bin1101101011100…
…0110010110010
310222222012120212
43122320302302
5104142130033
65405504122
71264502453
oct332706262
9128865525
1057380018
112a431503
1217272042
13bb70597
14789912a
155086748
hex36b8cb2

57380018 has 8 divisors (see below), whose sum is σ = 86265648. Its totient is φ = 28624804.

The previous prime is 57380003. The next prime is 57380021. The reversal of 57380018 is 81008375.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 31496 + ... + 33267.

It is an arithmetic number, because the mean of its divisors is an integer number (10783206).

Almost surely, 257380018 is an apocalyptic number.

57380018 is a deficient number, since it is larger than the sum of its proper divisors (28885630).

57380018 is a wasteful number, since it uses less digits than its factorization.

57380018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65208.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 57380018 is about 7574.9599338874. The cubic root of 57380018 is about 385.7034824461.

The spelling of 57380018 in words is "fifty-seven million, three hundred eighty thousand, eighteen".

Divisors: 1 2 443 886 64763 129526 28690009 57380018