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93143 = 175479
BaseRepresentation
bin10110101111010111
311201202202
4112233113
510440033
61555115
7535361
oct265727
9151682
1093143
1163a86
1245a9b
133351b
1425d31
151c8e8
hex16bd7

93143 has 4 divisors (see below), whose sum is σ = 98640. Its totient is φ = 87648.

The previous prime is 93139. The next prime is 93151. The reversal of 93143 is 34139.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34139 = 74877.

It is a cyclic number.

It is not a de Polignac number, because 93143 - 22 = 93139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93103) 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, 2723 + ... + 2756.

It is an arithmetic number, because the mean of its divisors is an integer number (24660).

293143 is an apocalyptic number.

93143 is a deficient number, since it is larger than the sum of its proper divisors (5497).

93143 is a wasteful number, since it uses less digits than its factorization.

93143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496.

The product of its digits is 324, while the sum is 20.

The square root of 93143 is about 305.1933813175. The cubic root of 93143 is about 45.3297587051.

The spelling of 93143 in words is "ninety-three thousand, one hundred forty-three".

Divisors: 1 17 5479 93143