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57910990 = 2519929101
BaseRepresentation
bin1101110011101…
…0011011001110
311000222011221111
43130322123032
5104311122430
65425122234
71302143464
oct334723316
9130864844
1057910990
112a764425
121748937a
13bcc8177
147996834
15513dc2a
hex373a6ce

57910990 has 16 divisors (see below), whose sum is σ = 104767200. Its totient is φ = 23047200.

The previous prime is 57910969. The next prime is 57910997. The reversal of 57910990 is 9901975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57910997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12561 + ... + 16540.

It is an arithmetic number, because the mean of its divisors is an integer number (6547950).

Almost surely, 257910990 is an apocalyptic number.

57910990 is a deficient number, since it is larger than the sum of its proper divisors (46856210).

57910990 is a wasteful number, since it uses less digits than its factorization.

57910990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29307.

The product of its (nonzero) digits is 25515, while the sum is 40.

The square root of 57910990 is about 7609.9270692957. The cubic root of 57910990 is about 386.8895473193.

The spelling of 57910990 in words is "fifty-seven million, nine hundred ten thousand, nine hundred ninety".

Divisors: 1 2 5 10 199 398 995 1990 29101 58202 145505 291010 5791099 11582198 28955495 57910990