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682819085 = 513101104009
BaseRepresentation
bin101000101100101…
…111111000001101
31202120211210200202
4220230233320031
52344300202320
6151431103245
722630603124
oct5054577015
91676753622
10682819085
113204850a3
12170811b25
13ab605180
1466984abb
153ee2bb75
hex28b2fe0d

682819085 has 16 divisors (see below), whose sum is σ = 891157680. Its totient is φ = 499238400.

The previous prime is 682819069. The next prime is 682819117. The reversal of 682819085 is 580918286.

It can be written as a sum of positive squares in 8 ways, for example, as 41615401 + 641203684 = 6451^2 + 25322^2 .

It is not a de Polignac number, because 682819085 - 24 = 682819069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45440 + ... + 58569.

It is an arithmetic number, because the mean of its divisors is an integer number (55697355).

Almost surely, 2682819085 is an apocalyptic number.

682819085 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

682819085 is a deficient number, since it is larger than the sum of its proper divisors (208338595).

682819085 is a wasteful number, since it uses less digits than its factorization.

682819085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104128.

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 682819085 is about 26130.8072014624. The cubic root of 682819085 is about 880.5794586632.

The spelling of 682819085 in words is "six hundred eighty-two million, eight hundred nineteen thousand, eighty-five".

Divisors: 1 5 13 65 101 505 1313 6565 104009 520045 1352117 6760585 10504909 52524545 136563817 682819085