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57238888 = 2371022123
BaseRepresentation
bin1101101001011…
…0010101101000
310222201000222211
43122112111220
5104123121023
65402454504
71263344140
oct332262550
9128630884
1057238888
112a345473
1217204434
13bb21285
14785d920
155059a0d
hex3696568

57238888 has 16 divisors (see below), whose sum is σ = 122654880. Its totient is φ = 24530928.

The previous prime is 57238879. The next prime is 57238919. The reversal of 57238888 is 88883275.

57238888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511006 + ... + 511117.

It is an arithmetic number, because the mean of its divisors is an integer number (7665930).

Almost surely, 257238888 is an apocalyptic number.

It is an amenable number.

57238888 is an abundant number, since it is smaller than the sum of its proper divisors (65415992).

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

57238888 is a wasteful number, since it uses less digits than its factorization.

57238888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022136 (or 1022132 counting only the distinct ones).

The product of its digits is 860160, while the sum is 49.

The square root of 57238888 is about 7565.6386379472. The cubic root of 57238888 is about 385.3870016470.

The spelling of 57238888 in words is "fifty-seven million, two hundred thirty-eight thousand, eight hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 1022123 2044246 4088492 7154861 8176984 14309722 28619444 57238888