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57052536 = 2337930091
BaseRepresentation
bin1101100110100…
…0110101111000
310222100120100220
43121220311320
5104101140121
65354500040
71261636632
oct331506570
9128316326
1057052536
112a228462
1217134620
13ba874c8
147811a52
15501e6c6
hex3668d78

57052536 has 32 divisors (see below), whose sum is σ = 144441600. Its totient is φ = 18776160.

The previous prime is 57052531. The next prime is 57052559. The reversal of 57052536 is 63525075.

It is a junction number, because it is equal to n+sod(n) for n = 57052497 and 57052506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57052531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13150 + ... + 16941.

It is an arithmetic number, because the mean of its divisors is an integer number (4513800).

Almost surely, 257052536 is an apocalyptic number.

It is an amenable number.

57052536 is an abundant number, since it is smaller than the sum of its proper divisors (87389064).

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

57052536 is a wasteful number, since it uses less digits than its factorization.

57052536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30179 (or 30175 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 57052536 is about 7553.3129155358. The cubic root of 57052536 is about 384.9683135782.

The spelling of 57052536 in words is "fifty-seven million, fifty-two thousand, five hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 24 79 158 237 316 474 632 948 1896 30091 60182 90273 120364 180546 240728 361092 722184 2377189 4754378 7131567 9508756 14263134 19017512 28526268 57052536