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57432 = 2332393
BaseRepresentation
bin1110000001011000
32220210010
432001120
53314212
61121520
7326304
oct160130
986703
1057432
113a171
12292a0
13201ab
1416d04
151203c
hexe058

57432 has 16 divisors (see below), whose sum is σ = 143640. Its totient is φ = 19136.

The previous prime is 57427. The next prime is 57457. The reversal of 57432 is 23475.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 57399 and 57408.

It is a congruent number.

It is an unprimeable number.

57432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173 + ... + 1220.

257432 is an apocalyptic number.

It is an amenable number.

57432 is an abundant number, since it is smaller than the sum of its proper divisors (86208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71820).

57432 is a wasteful number, since it uses less digits than its factorization.

57432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402 (or 2398 counting only the distinct ones).

The product of its digits is 840, while the sum is 21.

The square root of 57432 is about 239.6497444188. The cubic root of 57432 is about 38.5819920117.

It can be divided in two parts, 574 and 32, that added together give a palindrome (606).

The spelling of 57432 in words is "fifty-seven thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 2393 4786 7179 9572 14358 19144 28716 57432