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57082577 = 73977243
BaseRepresentation
bin1101100111000…
…0001011010001
310222102002120112
43121300023101
5104103120302
65355251105
71262123336
oct331601321
9128362515
1057082577
112a248a92
1217149a95
13ba98096
14781c98d
155028552
hex36702d1

57082577 has 4 divisors (see below), whose sum is σ = 57160560. Its totient is φ = 57004596.

The previous prime is 57082511. The next prime is 57082579. The reversal of 57082577 is 77528075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57082577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57082579) 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, 37883 + ... + 39360.

It is an arithmetic number, because the mean of its divisors is an integer number (14290140).

Almost surely, 257082577 is an apocalyptic number.

It is an amenable number.

57082577 is a deficient number, since it is larger than the sum of its proper divisors (77983).

57082577 is an equidigital number, since it uses as much as digits as its factorization.

57082577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77982.

The product of its (nonzero) digits is 137200, while the sum is 41.

The square root of 57082577 is about 7555.3012514393. The cubic root of 57082577 is about 385.0358700486.

The spelling of 57082577 in words is "fifty-seven million, eighty-two thousand, five hundred seventy-seven".

Divisors: 1 739 77243 57082577