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57132256 = 253157593
BaseRepresentation
bin1101100111110…
…0010011100000
310222111121201111
43121330103200
5104111213011
65400313104
71262421226
oct331742340
9128447644
1057132256
112a282345
1217172794
13bab488c
147832b16
155038121
hex367c4e0

57132256 has 24 divisors (see below), whose sum is σ = 116109504. Its totient is φ = 27644160.

The previous prime is 57132239. The next prime is 57132281. The reversal of 57132256 is 65223175.

57132256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 27805 + ... + 29788.

It is an arithmetic number, because the mean of its divisors is an integer number (4837896).

Almost surely, 257132256 is an apocalyptic number.

It is an amenable number.

57132256 is an abundant number, since it is smaller than the sum of its proper divisors (58977248).

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

57132256 is a wasteful number, since it uses less digits than its factorization.

57132256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57634 (or 57626 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 57132256 is about 7558.5882279696. The cubic root of 57132256 is about 385.1475366410.

The spelling of 57132256 in words is "fifty-seven million, one hundred thirty-two thousand, two hundred fifty-six".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 57593 115186 230372 460744 921488 1785383 1842976 3570766 7141532 14283064 28566128 57132256