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57729382 = 21710211663
BaseRepresentation
bin1101110000111…
…0000101100110
311000121221211021
43130032011212
5104234320012
65421201354
71300456144
oct334160546
9130557737
1057729382
112a64aa37
121740025a
13bc635c9
14794a594
155105007
hex370e166

57729382 has 16 divisors (see below), whose sum is σ = 91832832. Its totient is φ = 27123840.

The previous prime is 57729377. The next prime is 57729383. The reversal of 57729382 is 28392775.

57729382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×577293822 = 6665363092203848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57729383) 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 7 ways as a sum of consecutive naturals, for example, 33883 + ... + 35545.

It is an arithmetic number, because the mean of its divisors is an integer number (5739552).

Almost surely, 257729382 is an apocalyptic number.

57729382 is a deficient number, since it is larger than the sum of its proper divisors (34103450).

57729382 is a wasteful number, since it uses less digits than its factorization.

57729382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703.

The product of its digits is 211680, while the sum is 43.

The square root of 57729382 is about 7597.9853908783. The cubic root of 57729382 is about 386.4846972080.

The spelling of 57729382 in words is "fifty-seven million, seven hundred twenty-nine thousand, three hundred eighty-two".

Divisors: 1 2 17 34 1021 1663 2042 3326 17357 28271 34714 56542 1697923 3395846 28864691 57729382