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79057 = 117187
BaseRepresentation
bin10011010011010001
311000110001
4103103101
510012212
61410001
7446326
oct232321
9130401
1079057
1154440
1239901
1329ca4
1420b4d
1518657
hex134d1

79057 has 4 divisors (see below), whose sum is σ = 86256. Its totient is φ = 71860.

The previous prime is 79043. The next prime is 79063. The reversal of 79057 is 75097.

79057 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75097 = 116827.

It is a cyclic number.

It is not a de Polignac number, because 79057 - 27 = 78929 is a prime.

It is a Duffinian number.

79057 is a lucky number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (79087) 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, 3583 + ... + 3604.

It is an arithmetic number, because the mean of its divisors is an integer number (21564).

279057 is an apocalyptic number.

It is an amenable number.

79057 is a deficient number, since it is larger than the sum of its proper divisors (7199).

79057 is a wasteful number, since it uses less digits than its factorization.

79057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7198.

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 79057 is about 281.1707666170. The cubic root of 79057 is about 42.9187215321.

The spelling of 79057 in words is "seventy-nine thousand, fifty-seven".

Divisors: 1 11 7187 79057