Base | Representation |
---|---|
bin | 11110110101111100100101 |
3 | 120012202221000 |
4 | 132311330211 |
5 | 4032212120 |
6 | 445143513 |
7 | 125503155 |
oct | 36657445 |
9 | 16182830 |
10 | 8085285 |
11 | 462265a |
12 | 285ab99 |
13 | 18a11c0 |
14 | 1106765 |
15 | a9a990 |
hex | 7b5f25 |
8085285 has 64 divisors (see below), whose sum is σ = 16450560. Its totient is φ = 3732480.
The previous prime is 8085281. The next prime is 8085307. The reversal of 8085285 is 5825808.
It is not a de Polignac number, because 8085285 - 22 = 8085281 is a prime.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8085281) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29700 + ... + 29970.
It is an arithmetic number, because the mean of its divisors is an integer number (257040).
Almost surely, 28085285 is an apocalyptic number.
8085285 is a gapful number since it is divisible by the number (85) formed by its first and last digit.
It is an amenable number.
8085285 is an abundant number, since it is smaller than the sum of its proper divisors (8365275).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8085285 is a wasteful number, since it uses less digits than its factorization.
8085285 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 315 (or 309 counting only the distinct ones).
The product of its (nonzero) digits is 25600, while the sum is 36.
The square root of 8085285 is about 2843.4635570023. The cubic root of 8085285 is about 200.7081976538.
The spelling of 8085285 in words is "eight million, eighty-five thousand, two hundred eighty-five".
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