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57831342 = 239638557
BaseRepresentation
bin1101110010011…
…0111110101110
311000211010200120
43130212332232
5104301100332
65423305410
71301362332
oct334467656
9130733616
1057831342
112a70a5a8
121744b266
13bc9ab3a
1479757c2
15512532c
hex3726fae

57831342 has 8 divisors (see below), whose sum is σ = 115662696. Its totient is φ = 19277112.

The previous prime is 57831311. The next prime is 57831349. The reversal of 57831342 is 24313875.

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

57831342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57831349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4819273 + ... + 4819284.

It is an arithmetic number, because the mean of its divisors is an integer number (14457837).

Almost surely, 257831342 is an apocalyptic number.

57831342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57831342 is a wasteful number, since it uses less digits than its factorization.

57831342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9638562.

The product of its digits is 20160, while the sum is 33.

The square root of 57831342 is about 7604.6921042209. The cubic root of 57831342 is about 386.7120961618.

The spelling of 57831342 in words is "fifty-seven million, eight hundred thirty-one thousand, three hundred forty-two".

Divisors: 1 2 3 6 9638557 19277114 28915671 57831342