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82085315 = 5131262851
BaseRepresentation
bin1001110010010…
…00010111000011
312201110100212212
410321020113003
5132003212230
612051212335
72014466534
oct471102703
9181410785
1082085315
1142375a04
12235a70ab
13140105c0
14ac8a68b
157316895
hex4e485c3

82085315 has 8 divisors (see below), whose sum is σ = 106079568. Its totient is φ = 60616800.

The previous prime is 82085309. The next prime is 82085329. The reversal of 82085315 is 51358028.

It is a happy number.

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

It is not a de Polignac number, because 82085315 - 218 = 81823171 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631361 + ... + 631490.

It is an arithmetic number, because the mean of its divisors is an integer number (13259946).

Almost surely, 282085315 is an apocalyptic number.

82085315 is a deficient number, since it is larger than the sum of its proper divisors (23994253).

82085315 is a wasteful number, since it uses less digits than its factorization.

82085315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262869.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 82085315 is about 9060.0946463048. The cubic root of 82085315 is about 434.5987668564.

The spelling of 82085315 in words is "eighty-two million, eighty-five thousand, three hundred fifteen".

Divisors: 1 5 13 65 1262851 6314255 16417063 82085315