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51793 = 73151
BaseRepresentation
bin1100101001010001
32122001021
430221101
53124133
61035441
7304000
oct145121
978037
1051793
1135a05
1225b81
131a761
1414c37
151052d
hexca51

51793 has 8 divisors (see below), whose sum is σ = 60800. Its totient is φ = 44100.

The previous prime is 51787. The next prime is 51797. The reversal of 51793 is 39715.

It is a de Polignac number, because none of the positive numbers 2k-51793 is a prime.

It is a Duffinian number.

51793 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268 + ... + 418.

It is an arithmetic number, because the mean of its divisors is an integer number (7600).

251793 is an apocalyptic number.

It is an amenable number.

51793 is a deficient number, since it is larger than the sum of its proper divisors (9007).

51793 is an equidigital number, since it uses as much as digits as its factorization.

51793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 158 counting only the distinct ones).

The product of its digits is 945, while the sum is 25.

The square root of 51793 is about 227.5807548981. The cubic root of 51793 is about 37.2755181513.

The spelling of 51793 in words is "fifty-one thousand, seven hundred ninety-three".

Divisors: 1 7 49 151 343 1057 7399 51793