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57112905 = 353807527
BaseRepresentation
bin1101100111011…
…1100101001001
310222110122011210
43121313211021
5104110103110
65400043333
71262310633
oct331674511
9128418153
1057112905
112a269853
1217163549
13baa8b25
147829a53
155032520
hex3677949

57112905 has 8 divisors (see below), whose sum is σ = 91380672. Its totient is φ = 30460208.

The previous prime is 57112873. The next prime is 57112927. The reversal of 57112905 is 50921175.

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

It is a cyclic number.

It is not a de Polignac number, because 57112905 - 25 = 57112873 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1903749 + ... + 1903778.

It is an arithmetic number, because the mean of its divisors is an integer number (11422584).

Almost surely, 257112905 is an apocalyptic number.

It is an amenable number.

57112905 is a deficient number, since it is larger than the sum of its proper divisors (34267767).

57112905 is a wasteful number, since it uses less digits than its factorization.

57112905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807535.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 57112905 is about 7557.3080524748. The cubic root of 57112905 is about 385.1040478887.

The spelling of 57112905 in words is "fifty-seven million, one hundred twelve thousand, nine hundred five".

Divisors: 1 3 5 15 3807527 11422581 19037635 57112905