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57383502 = 23111316637
BaseRepresentation
bin1101101011100…
…1101001001110
310222222101100220
43122321221032
5104142233002
65405532210
71264515561
oct332715116
9128871326
1057383502
112a434090
1217274066
13bb72047
14789a4d8
1550877bc
hex36b9a4e

57383502 has 32 divisors (see below), whose sum is σ = 126175104. Its totient is φ = 17253600.

The previous prime is 57383497. The next prime is 57383531. The reversal of 57383502 is 20538375.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5328 + ... + 11964.

It is an arithmetic number, because the mean of its divisors is an integer number (3942972).

Almost surely, 257383502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57383502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63087552).

57383502 is an abundant number, since it is smaller than the sum of its proper divisors (68791602).

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

57383502 is a wasteful number, since it uses less digits than its factorization.

57383502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 57383502 is about 7575.1898986098. The cubic root of 57383502 is about 385.7112886696.

The spelling of 57383502 in words is "fifty-seven million, three hundred eighty-three thousand, five hundred two".

Divisors: 1 2 3 6 11 22 33 66 131 262 393 786 1441 2882 4323 6637 8646 13274 19911 39822 73007 146014 219021 438042 869447 1738894 2608341 5216682 9563917 19127834 28691751 57383502