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57750539 = 7112332609
BaseRepresentation
bin1101110001001…
…1010000001011
311000200000211212
43130103100023
5104241004124
65421443335
71300604630
oct334232013
9130600755
1057750539
112a664920
121741054b
13bc70122
147954187
15510b40e
hex371340b

57750539 has 16 divisors (see below), whose sum is σ = 75133440. Its totient is φ = 43042560.

The previous prime is 57750529. The next prime is 57750541. The reversal of 57750539 is 93505775.

It is a happy number.

It is not a de Polignac number, because 57750539 - 216 = 57685003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57750496 and 57750505.

It is not an unprimeable number, because it can be changed into a prime (57750529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14534 + ... + 18075.

It is an arithmetic number, because the mean of its divisors is an integer number (4695840).

Almost surely, 257750539 is an apocalyptic number.

57750539 is a deficient number, since it is larger than the sum of its proper divisors (17382901).

57750539 is a wasteful number, since it uses less digits than its factorization.

57750539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32650.

The product of its (nonzero) digits is 165375, while the sum is 41.

The square root of 57750539 is about 7599.3775402989. The cubic root of 57750539 is about 386.5319051620.

The spelling of 57750539 in words is "fifty-seven million, seven hundred fifty thousand, five hundred thirty-nine".

Divisors: 1 7 11 23 77 161 253 1771 32609 228263 358699 750007 2510893 5250049 8250077 57750539