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57872 = 243617
BaseRepresentation
bin1110001000010000
32221101102
432020100
53322442
61123532
7330503
oct161020
987342
1057872
113a531
12295a8
1320459
141713a
1512232
hexe210

57872 has 10 divisors (see below), whose sum is σ = 112158. Its totient is φ = 28928.

The previous prime is 57859. The next prime is 57881. The reversal of 57872 is 27875.

It can be written as a sum of positive squares in only one way, i.e., 30976 + 26896 = 176^2 + 164^2 .

It is an Ulam number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1793 + ... + 1824.

257872 is an apocalyptic number.

It is an amenable number.

57872 is a deficient number, since it is larger than the sum of its proper divisors (54286).

57872 is a wasteful number, since it uses less digits than its factorization.

57872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625 (or 3619 counting only the distinct ones).

The product of its digits is 3920, while the sum is 29.

The square root of 57872 is about 240.5659992601. The cubic root of 57872 is about 38.6802700188.

It can be divided in two parts, 578 and 72, that multiplied together give a triangular number (41616 = T288).

The spelling of 57872 in words is "fifty-seven thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 16 3617 7234 14468 28936 57872