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58139 = 471237
BaseRepresentation
bin1110001100011011
32221202022
432030123
53330024
61125055
7331334
oct161433
987668
1058139
113a754
122978b
1320603
141728b
151235e
hexe31b

58139 has 4 divisors (see below), whose sum is σ = 59424. Its totient is φ = 56856.

The previous prime is 58129. The next prime is 58147. The reversal of 58139 is 93185.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93185 = 518637.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-58139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (58109) 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, 572 + ... + 665.

It is an arithmetic number, because the mean of its divisors is an integer number (14856).

258139 is an apocalyptic number.

58139 is a deficient number, since it is larger than the sum of its proper divisors (1285).

58139 is a wasteful number, since it uses less digits than its factorization.

58139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

The product of its digits is 1080, while the sum is 26.

The square root of 58139 is about 241.1203019242. The cubic root of 58139 is about 38.7396642569.

The spelling of 58139 in words is "fifty-eight thousand, one hundred thirty-nine".

Divisors: 1 47 1237 58139