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57486724 = 221722232
BaseRepresentation
bin1101101101001…
…0110110000100
311000011121221221
43123102312010
5104204033344
65412050124
71265425531
oct333226604
9130147857
1057486724
112a4a4699
1217303944
13bbaa019
1478c5d88
1550a8184
hex36d2d84

57486724 has 27 divisors (see below), whose sum is σ = 107348997. Its totient is φ = 26931264.

The previous prime is 57486721. The next prime is 57486763. The reversal of 57486724 is 42768475.

The square root of 57486724 is 7582.

It is a perfect power (a square), and thus also a powerful number.

57486724 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 only one way, i.e., 44756100 + 12730624 = 6690^2 + 3568^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57486721) 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 8 ways as a sum of consecutive naturals, for example, 257677 + ... + 257899.

Almost surely, 257486724 is an apocalyptic number.

57486724 is the 7582-nd square number.

It is an amenable number.

57486724 is a deficient number, since it is larger than the sum of its proper divisors (49862273).

57486724 is a wasteful number, since it uses less digits than its factorization.

57486724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 242 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The cubic root of 57486724 is about 385.9424238714.

The spelling of 57486724 in words is "fifty-seven million, four hundred eighty-six thousand, seven hundred twenty-four".

Divisors: 1 2 4 17 34 68 223 289 446 578 892 1156 3791 7582 15164 49729 64447 99458 128894 198916 257788 845393 1690786 3381572 14371681 28743362 57486724