Base | Representation |
---|---|
bin | 110000001011010… |
… | …111011101001111 |
3 | 2002022221011222200 |
4 | 300023113131033 |
5 | 3123410123111 |
6 | 212112212543 |
7 | 26013214020 |
oct | 6013273517 |
9 | 2068834880 |
10 | 808286031 |
11 | 385290293 |
12 | 1a683a153 |
13 | cb5c4577 |
14 | 794c4c47 |
15 | 4ae62256 |
hex | 302d774f |
808286031 has 12 divisors (see below), whose sum is σ = 1334313552. Its totient is φ = 461877696.
The previous prime is 808285991. The next prime is 808286041. The reversal of 808286031 is 130682808.
It is not a de Polignac number, because 808286031 - 26 = 808285967 is a prime.
It is a super-2 number, since 2×8082860312 = 1306652615819465922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (808286041) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 6414906 + ... + 6415031.
It is an arithmetic number, because the mean of its divisors is an integer number (111192796).
Almost surely, 2808286031 is an apocalyptic number.
808286031 is a deficient number, since it is larger than the sum of its proper divisors (526027521).
808286031 is a wasteful number, since it uses less digits than its factorization.
808286031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12829950 (or 12829947 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 36.
The square root of 808286031 is about 28430.3716296499. The cubic root of 808286031 is about 931.5117936347.
The spelling of 808286031 in words is "eight hundred eight million, two hundred eighty-six thousand, thirty-one".
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