Base | Representation |
---|---|
bin | 11001111110010111111101 |
3 | 110210221022100 |
4 | 121332113331 |
5 | 3220342320 |
6 | 401535313 |
7 | 111606363 |
oct | 31762775 |
9 | 13727270 |
10 | 6809085 |
11 | 3930848 |
12 | 2344539 |
13 | 154535a |
14 | c93633 |
15 | 8e7790 |
hex | 67e5fd |
6809085 has 24 divisors (see below), whose sum is σ = 11863800. Its totient is φ = 3612672.
The previous prime is 6809063. The next prime is 6809137. The reversal of 6809085 is 5809086.
6809085 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 443556 + 6365529 = 666^2 + 2523^2 .
It is not a de Polignac number, because 6809085 - 214 = 6792701 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14941 + ... + 15389.
It is an arithmetic number, because the mean of its divisors is an integer number (494325).
Almost surely, 26809085 is an apocalyptic number.
It is an amenable number.
6809085 is a deficient number, since it is larger than the sum of its proper divisors (5054715).
6809085 is a wasteful number, since it uses less digits than its factorization.
6809085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 797 (or 794 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 36.
The square root of 6809085 is about 2609.4223498698. The cubic root of 6809085 is about 189.5379817723.
Subtracting from 6809085 its reverse (5809086), we obtain a palindrome (999999).
The spelling of 6809085 in words is "six million, eight hundred nine thousand, eighty-five".
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