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57288766 = 289321847
BaseRepresentation
bin1101101010001…
…0100000111110
310222210120102011
43122202200332
5104131220031
65403521434
71263642433
oct332424076
9128716364
1057288766
112a379997
121722927a
13bb3aba2
147873b8a
1550696b1
hex36a283e

57288766 has 8 divisors (see below), whose sum is σ = 86898960. Its totient is φ = 28322448.

The previous prime is 57288739. The next prime is 57288773. The reversal of 57288766 is 66788275.

57288766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 160746 + ... + 161101.

It is an arithmetic number, because the mean of its divisors is an integer number (10862370).

Almost surely, 257288766 is an apocalyptic number.

57288766 is a deficient number, since it is larger than the sum of its proper divisors (29610194).

57288766 is a wasteful number, since it uses less digits than its factorization.

57288766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321938.

The product of its digits is 1128960, while the sum is 49.

The square root of 57288766 is about 7568.9342710847. The cubic root of 57288766 is about 385.4989112990.

The spelling of 57288766 in words is "fifty-seven million, two hundred eighty-eight thousand, seven hundred sixty-six".

Divisors: 1 2 89 178 321847 643694 28644383 57288766