Base | Representation |
---|---|
bin | 110000001100100… |
… | …110100100100101 |
3 | 2002100112122111200 |
4 | 300030212210211 |
5 | 3124001010320 |
6 | 212123153113 |
7 | 26016033543 |
oct | 6014464445 |
9 | 2070478450 |
10 | 808610085 |
11 | 3854917a8 |
12 | 1a6975799 |
13 | cb6a8c0a |
14 | 7956ad93 |
15 | 4aec8290 |
hex | 30326925 |
808610085 has 12 divisors (see below), whose sum is σ = 1401590892. Its totient is φ = 431258688.
The previous prime is 808610053. The next prime is 808610087. The reversal of 808610085 is 580016808.
It can be written as a sum of positive squares in 2 ways, for example, as 384826689 + 423783396 = 19617^2 + 20586^2 .
It is not a de Polignac number, because 808610085 - 25 = 808610053 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (808610087) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8984512 + ... + 8984601.
It is an arithmetic number, because the mean of its divisors is an integer number (116799241).
Almost surely, 2808610085 is an apocalyptic number.
It is an amenable number.
808610085 is a deficient number, since it is larger than the sum of its proper divisors (592980807).
808610085 is a wasteful number, since it uses less digits than its factorization.
808610085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17969124 (or 17969121 counting only the distinct ones).
The product of its (nonzero) digits is 15360, while the sum is 36.
The square root of 808610085 is about 28436.0701398769. The cubic root of 808610085 is about 931.6362626882.
The spelling of 808610085 in words is "eight hundred eight million, six hundred ten thousand, eighty-five".
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