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82479 = 3191447
BaseRepresentation
bin10100001000101111
311012010210
4110020233
510114404
61433503
7462315
oct241057
9135123
1082479
1156a71
123b893
132b707
14220b5
1519689
hex1422f

82479 has 8 divisors (see below), whose sum is σ = 115840. Its totient is φ = 52056.

The previous prime is 82471. The next prime is 82483. The reversal of 82479 is 97428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82479 - 23 = 82471 is a prime.

It is a Duffinian number.

82479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667 + ... + 780.

It is an arithmetic number, because the mean of its divisors is an integer number (14480).

282479 is an apocalyptic number.

82479 is a deficient number, since it is larger than the sum of its proper divisors (33361).

82479 is a wasteful number, since it uses less digits than its factorization.

82479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469.

The product of its digits is 4032, while the sum is 30.

The square root of 82479 is about 287.1915736925. The cubic root of 82479 is about 43.5292444385.

It can be divided in two parts, 8247 and 9, that added together give a triangular number (8256 = T128).

The spelling of 82479 in words is "eighty-two thousand, four hundred seventy-nine".

Divisors: 1 3 19 57 1447 4341 27493 82479