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58431 = 319477
BaseRepresentation
bin1110010000111111
32222011010
432100333
53332211
61130303
7332232
oct162077
988133
1058431
113a99a
1229993
1320799
1417419
15124a6
hexe43f

58431 has 4 divisors (see below), whose sum is σ = 77912. Its totient is φ = 38952.

The previous prime is 58427. The next prime is 58439. The reversal of 58431 is 13485.

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

It is not a de Polignac number, because 58431 - 22 = 58427 is a prime.

It is a super-2 number, since 2×584312 = 6828363522, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 58398 and 58407.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 58431.

It is not an unprimeable number, because it can be changed into a prime (58439) 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, 9736 + ... + 9741.

It is an arithmetic number, because the mean of its divisors is an integer number (19478).

258431 is an apocalyptic number.

58431 is a deficient number, since it is larger than the sum of its proper divisors (19481).

58431 is a wasteful number, since it uses less digits than its factorization.

58431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19480.

The product of its digits is 480, while the sum is 21.

The square root of 58431 is about 241.7250504189. The cubic root of 58431 is about 38.8044119403.

The spelling of 58431 in words is "fifty-eight thousand, four hundred thirty-one".

Divisors: 1 3 19477 58431