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57028486 = 236317853
BaseRepresentation
bin1101100110001…
…0111110000110
310222022100101011
43121202332012
5104044402421
65354152434
71261506544
oct331427606
9128270334
1057028486
112a211389
121712271a
13ba79588
147806d94
1550174e1
hex3662f86

57028486 has 8 divisors (see below), whose sum is σ = 85577184. Its totient is φ = 28502760.

The previous prime is 57028469. The next prime is 57028493. The reversal of 57028486 is 68482075.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336 + ... + 11188.

It is an arithmetic number, because the mean of its divisors is an integer number (10697148).

Almost surely, 257028486 is an apocalyptic number.

57028486 is a deficient number, since it is larger than the sum of its proper divisors (28548698).

57028486 is a wasteful number, since it uses less digits than its factorization.

57028486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11486.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 57028486 is about 7551.7207310652. The cubic root of 57028486 is about 384.9142126282.

The spelling of 57028486 in words is "fifty-seven million, twenty-eight thousand, four hundred eighty-six".

Divisors: 1 2 3631 7262 7853 15706 28514243 57028486