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57724264 = 2313555041
BaseRepresentation
bin1101110000110…
…0110101101000
311000121200210201
43130030311220
5104234134024
65421121544
71300435213
oct334146550
9130550721
1057724264
112a647104
12173b92b4
13bc61190
14794877a
155103744
hex370cd68

57724264 has 16 divisors (see below), whose sum is σ = 116558820. Its totient is φ = 26641920.

The previous prime is 57724241. The next prime is 57724267. The reversal of 57724264 is 46242775.

57724264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55621764 + 2102500 = 7458^2 + 1450^2 .

It is not an unprimeable number, because it can be changed into a prime (57724267) 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 3 ways as a sum of consecutive naturals, for example, 277417 + ... + 277624.

Almost surely, 257724264 is an apocalyptic number.

It is an amenable number.

57724264 is an abundant number, since it is smaller than the sum of its proper divisors (58834556).

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

57724264 is a wasteful number, since it uses less digits than its factorization.

57724264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555060 (or 555056 counting only the distinct ones).

The product of its digits is 94080, while the sum is 37.

The square root of 57724264 is about 7597.6485836080. The cubic root of 57724264 is about 386.4732755998.

The spelling of 57724264 in words is "fifty-seven million, seven hundred twenty-four thousand, two hundred sixty-four".

Divisors: 1 2 4 8 13 26 52 104 555041 1110082 2220164 4440328 7215533 14431066 28862132 57724264