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83285 = 516657
BaseRepresentation
bin10100010101010101
311020020122
4110111111
510131120
61441325
7464546
oct242525
9136218
1083285
1157634
1240245
132bba7
14224cd
1519a25
hex14555

83285 has 4 divisors (see below), whose sum is σ = 99948. Its totient is φ = 66624.

The previous prime is 83273. The next prime is 83299. The reversal of 83285 is 58238.

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 64516 + 18769 = 254^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 83285 - 24 = 83269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14 and base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8324 + ... + 8333.

It is an arithmetic number, because the mean of its divisors is an integer number (24987).

283285 is an apocalyptic number.

It is an amenable number.

83285 is a deficient number, since it is larger than the sum of its proper divisors (16663).

83285 is a wasteful number, since it uses less digits than its factorization.

83285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16662.

The product of its digits is 1920, while the sum is 26.

The square root of 83285 is about 288.5914066635. The cubic root of 83285 is about 43.6705769925.

The spelling of 83285 in words is "eighty-three thousand, two hundred eighty-five".

Divisors: 1 5 16657 83285