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57039572 = 2273195341
BaseRepresentation
bin1101100110010…
…1101011010100
310222022220120202
43121211223110
5104100231242
65354320032
71261554062
oct331455324
9128286522
1057039572
112a219747
1217129018
13ba81635
14780b032
15501a932
hex3665ad4

57039572 has 12 divisors (see below), whose sum is σ = 101187156. Its totient is φ = 28128960.

The previous prime is 57039571. The next prime is 57039581. The reversal of 57039572 is 27593075.

It can be written as a sum of positive squares in 2 ways, for example, as 15100996 + 41938576 = 3886^2 + 6476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57039571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97379 + ... + 97962.

It is an arithmetic number, because the mean of its divisors is an integer number (8432263).

Almost surely, 257039572 is an apocalyptic number.

It is an amenable number.

57039572 is a deficient number, since it is larger than the sum of its proper divisors (44147584).

57039572 is a wasteful number, since it uses less digits than its factorization.

57039572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195418 (or 195416 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 57039572 is about 7552.4547002945. The cubic root of 57039572 is about 384.9391526934.

The spelling of 57039572 in words is "fifty-seven million, thirty-nine thousand, five hundred seventy-two".

Divisors: 1 2 4 73 146 292 195341 390682 781364 14259893 28519786 57039572