Base | Representation |
---|---|
bin | 10111111110101011… |
… | …01111010111000110 |
3 | 1020020012101000002200 |
4 | 23333111233113012 |
5 | 202331144324221 |
6 | 5525242415330 |
7 | 634011460443 |
oct | 137725572706 |
9 | 36205330080 |
10 | 12873823686 |
11 | 5506a35309 |
12 | 25b3501546 |
13 | 12a21c4769 |
14 | 8a1ac29ca |
15 | 50532b426 |
hex | 2ff56f5c6 |
12873823686 has 12 divisors (see below), whose sum is σ = 27893284692. Its totient is φ = 4291274556.
The previous prime is 12873823681. The next prime is 12873823691. The reversal of 12873823686 is 68632837821.
It is an interprime number because it is at equal distance from previous prime (12873823681) and next prime (12873823691).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12873823681) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357606196 + ... + 357606231.
It is an arithmetic number, because the mean of its divisors is an integer number (2324440391).
Almost surely, 212873823686 is an apocalyptic number.
12873823686 is an abundant number, since it is smaller than the sum of its proper divisors (15019461006).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12873823686 is a wasteful number, since it uses less digits than its factorization.
12873823686 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 715212435 (or 715212432 counting only the distinct ones).
The product of its digits is 4644864, while the sum is 54.
The spelling of 12873823686 in words is "twelve billion, eight hundred seventy-three million, eight hundred twenty-three thousand, six hundred eighty-six".
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