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57868838 = 267431857
BaseRepresentation
bin1101110011000…
…0001000100110
311000220001010022
43130300020212
5104303300323
65424155142
71301606546
oct334601046
9130801108
1057868838
112a735795
1217468ab2
13bcb1c21
147985326
1551314c8
hex3730226

57868838 has 8 divisors (see below), whose sum is σ = 88099032. Its totient is φ = 28502496.

The previous prime is 57868829. The next prime is 57868861. The reversal of 57868838 is 83886875.

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

It is a super-2 number, since 2×578688382 = 6697604822940488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57868838.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 215795 + ... + 216062.

It is an arithmetic number, because the mean of its divisors is an integer number (11012379).

Almost surely, 257868838 is an apocalyptic number.

57868838 is a deficient number, since it is larger than the sum of its proper divisors (30230194).

57868838 is a wasteful number, since it uses less digits than its factorization.

57868838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431926.

The product of its digits is 2580480, while the sum is 53.

The square root of 57868838 is about 7607.1570248024. The cubic root of 57868838 is about 386.7956553737.

The spelling of 57868838 in words is "fifty-seven million, eight hundred sixty-eight thousand, eight hundred thirty-eight".

Divisors: 1 2 67 134 431857 863714 28934419 57868838