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82751 = 83997
BaseRepresentation
bin10100001100111111
311012111212
4110030333
510122001
61435035
7463154
oct241477
9135455
1082751
1157199
123ba7b
132b886
142222b
15197bb
hex1433f

82751 has 4 divisors (see below), whose sum is σ = 83832. Its totient is φ = 81672.

The previous prime is 82729. The next prime is 82757. The reversal of 82751 is 15728.

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

It is not a de Polignac number, because 82751 - 210 = 81727 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82757) 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, 416 + ... + 581.

It is an arithmetic number, because the mean of its divisors is an integer number (20958).

282751 is an apocalyptic number.

82751 is a deficient number, since it is larger than the sum of its proper divisors (1081).

82751 is an equidigital number, since it uses as much as digits as its factorization.

82751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080.

The product of its digits is 560, while the sum is 23.

The square root of 82751 is about 287.6647354126. The cubic root of 82751 is about 43.5770423143.

Subtracting from 82751 its sum of digits (23), we obtain a palindrome (82728).

It can be divided in two parts, 827 and 51, that added together give a palindrome (878).

The spelling of 82751 in words is "eighty-two thousand, seven hundred fifty-one".

Divisors: 1 83 997 82751