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57742888 = 2377511373
BaseRepresentation
bin1101110001000…
…1011000101000
311000122122100111
43130101120220
5104240233023
65421344104
71300543420
oct334213050
9130578314
1057742888
112a65a0a5
1217408034
13bc697b8
147951480
15510900d
hex3711628

57742888 has 32 divisors (see below), whose sum is σ = 123989760. Its totient is φ = 24696000.

The previous prime is 57742849. The next prime is 57742889. The reversal of 57742888 is 88824775.

It is a super-2 number, since 2×577428882 = 6668482229161088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57742889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41370 + ... + 42742.

It is an arithmetic number, because the mean of its divisors is an integer number (3874680).

Almost surely, 257742888 is an apocalyptic number.

It is an amenable number.

57742888 is an abundant number, since it is smaller than the sum of its proper divisors (66246872).

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

57742888 is a wasteful number, since it uses less digits than its factorization.

57742888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137 (or 2133 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 49.

The square root of 57742888 is about 7598.8741271323. The cubic root of 57742888 is about 386.5148346938.

The spelling of 57742888 in words is "fifty-seven million, seven hundred forty-two thousand, eight hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 751 1373 1502 2746 3004 5257 5492 6008 9611 10514 10984 19222 21028 38444 42056 76888 1031123 2062246 4124492 7217861 8248984 14435722 28871444 57742888