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82465 = 516493
BaseRepresentation
bin10100001000100001
311012010021
4110020201
510114330
61433441
7462265
oct241041
9135107
1082465
1156a59
123b881
132b6c6
14220a5
151967a
hex14221

82465 has 4 divisors (see below), whose sum is σ = 98964. Its totient is φ = 65968.

The previous prime is 82463. The next prime is 82469. The reversal of 82465 is 56428.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12769 + 69696 = 113^2 + 264^2 .

It is a cyclic number.

It is not a de Polignac number, because 82465 - 21 = 82463 is a prime.

It is a d-powerful number, because it can be written as 82 + 216 + 45 + 63 + 56 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8242 + ... + 8251.

It is an arithmetic number, because the mean of its divisors is an integer number (24741).

282465 is an apocalyptic number.

It is an amenable number.

82465 is a deficient number, since it is larger than the sum of its proper divisors (16499).

82465 is a wasteful number, since it uses less digits than its factorization.

82465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16498.

The product of its digits is 1920, while the sum is 25.

The square root of 82465 is about 287.1671986840. The cubic root of 82465 is about 43.5267814120.

The spelling of 82465 in words is "eighty-two thousand, four hundred sixty-five".

Divisors: 1 5 16493 82465