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82879 = 671237
BaseRepresentation
bin10100001110111111
311012200121
4110032333
510123004
61435411
7463426
oct241677
9135617
1082879
11572a5
123bb67
132b954
14222bd
1519854
hex143bf

82879 has 4 divisors (see below), whose sum is σ = 84184. Its totient is φ = 81576.

The previous prime is 82847. The next prime is 82883. The reversal of 82879 is 97828.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 82879 - 25 = 82847 is a prime.

It is a Duffinian number.

82879 is a lucky 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 (82889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552 + ... + 685.

It is an arithmetic number, because the mean of its divisors is an integer number (21046).

282879 is an apocalyptic number.

82879 is a deficient number, since it is larger than the sum of its proper divisors (1305).

82879 is a wasteful number, since it uses less digits than its factorization.

82879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304.

The product of its digits is 8064, while the sum is 34.

The square root of 82879 is about 287.8871306606. The cubic root of 82879 is about 43.5994991947.

It can be divided in two parts, 82 and 879, that added together give a square (961 = 312).

The spelling of 82879 in words is "eighty-two thousand, eight hundred seventy-nine".

Divisors: 1 67 1237 82879