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57299286 = 2311868171
BaseRepresentation
bin1101101010010…
…1000101010110
310222211002211210
43122211011112
5104132034121
65404042250
71264015212
oct332450526
9128732753
1057299286
112a386890
1217233386
13bb42905
147877942
15506c876
hex36a5156

57299286 has 16 divisors (see below), whose sum is σ = 125016768. Its totient is φ = 17363400.

The previous prime is 57299261. The next prime is 57299287. The reversal of 57299286 is 68299275.

57299286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×572992862 = 6566416352219592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57299287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434020 + ... + 434151.

It is an arithmetic number, because the mean of its divisors is an integer number (7813548).

Almost surely, 257299286 is an apocalyptic number.

57299286 is an abundant number, since it is smaller than the sum of its proper divisors (67717482).

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

57299286 is a wasteful number, since it uses less digits than its factorization.

57299286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868187.

The product of its digits is 544320, while the sum is 48.

The square root of 57299286 is about 7569.6291851054. The cubic root of 57299286 is about 385.5225063865.

The spelling of 57299286 in words is "fifty-seven million, two hundred ninety-nine thousand, two hundred eighty-six".

Divisors: 1 2 3 6 11 22 33 66 868171 1736342 2604513 5209026 9549881 19099762 28649643 57299286