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57479 = 229251
BaseRepresentation
bin1110000010000111
32220211212
432002013
53314404
61122035
7326402
oct160207
986755
1057479
113a204
122931b
1320216
1416d39
151206e
hexe087

57479 has 4 divisors (see below), whose sum is σ = 57960. Its totient is φ = 57000.

The previous prime is 57467. The next prime is 57487. The reversal of 57479 is 97475.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 57479 - 28 = 57223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104 + ... + 354.

It is an arithmetic number, because the mean of its divisors is an integer number (14490).

257479 is an apocalyptic number.

57479 is a deficient number, since it is larger than the sum of its proper divisors (481).

57479 is a wasteful number, since it uses less digits than its factorization.

57479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480.

The product of its digits is 8820, while the sum is 32.

The square root of 57479 is about 239.7477841399. The cubic root of 57479 is about 38.5925137835.

The spelling of 57479 in words is "fifty-seven thousand, four hundred seventy-nine".

Divisors: 1 229 251 57479