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57428124 = 22313368129
BaseRepresentation
bin1101101100010…
…0100010011100
311000001122120120
43123010202130
5104200144444
65410514540
71265062635
oct333044234
9130048516
1057428124
112a464666
1217295a50
13bb89450
1478ac88c
155095b19
hex36c489c

57428124 has 24 divisors (see below), whose sum is σ = 144306960. Its totient is φ = 17670144.

The previous prime is 57428123. The next prime is 57428143. The reversal of 57428124 is 42182475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57428123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183909 + ... + 184220.

It is an arithmetic number, because the mean of its divisors is an integer number (6012790).

Almost surely, 257428124 is an apocalyptic number.

It is an amenable number.

57428124 is an abundant number, since it is smaller than the sum of its proper divisors (86878836).

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

57428124 is a wasteful number, since it uses less digits than its factorization.

57428124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368149 (or 368147 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 57428124 is about 7578.1345989630. The cubic root of 57428124 is about 385.8112404516.

The spelling of 57428124 in words is "fifty-seven million, four hundred twenty-eight thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 368129 736258 1104387 1472516 2208774 4417548 4785677 9571354 14357031 19142708 28714062 57428124