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57929 = 531093
BaseRepresentation
bin1110001001001001
32221110112
432021021
53323204
61124105
7330614
oct161111
987415
1057929
113a583
1229635
13204a1
141717b
151226e
hexe249

57929 has 4 divisors (see below), whose sum is σ = 59076. Its totient is φ = 56784.

The previous prime is 57923. The next prime is 57943. The reversal of 57929 is 92975.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51529 + 6400 = 227^2 + 80^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 57895 and 57904.

It is not an unprimeable number, because it can be changed into a prime (57923) 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, 494 + ... + 599.

It is an arithmetic number, because the mean of its divisors is an integer number (14769).

257929 is an apocalyptic number.

It is an amenable number.

57929 is a deficient number, since it is larger than the sum of its proper divisors (1147).

57929 is a wasteful number, since it uses less digits than its factorization.

57929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146.

The product of its digits is 5670, while the sum is 32.

The square root of 57929 is about 240.6844407102. The cubic root of 57929 is about 38.6929650004.

The spelling of 57929 in words is "fifty-seven thousand, nine hundred twenty-nine".

Divisors: 1 53 1093 57929