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57253684 = 2227751673
BaseRepresentation
bin1101101001100…
…1111100110100
310222201210021211
43122121330310
5104124104214
65403051204
71263435235
oct332317464
9128653254
1057253684
112a3555a4
1217210b04
13bb27c27
14786508c
15505e0c4
hex3699f34

57253684 has 12 divisors (see below), whose sum is σ = 100557604. Its totient is φ = 28522944.

The previous prime is 57253673. The next prime is 57253709. The reversal of 57253684 is 48635275.

It can be written as a sum of positive squares in 2 ways, for example, as 37699600 + 19554084 = 6140^2 + 4422^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 24729 + ... + 26944.

Almost surely, 257253684 is an apocalyptic number.

It is an amenable number.

57253684 is a deficient number, since it is larger than the sum of its proper divisors (43303920).

57253684 is a wasteful number, since it uses less digits than its factorization.

57253684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51954 (or 51952 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 57253684 is about 7566.6164168669. The cubic root of 57253684 is about 385.4202057326.

It can be divided in two parts, 5725 and 3684, that added together give a square (9409 = 972).

The spelling of 57253684 in words is "fifty-seven million, two hundred fifty-three thousand, six hundred eighty-four".

Divisors: 1 2 4 277 554 1108 51673 103346 206692 14313421 28626842 57253684