Base | Representation |
---|---|
bin | 10110111011110111… |
… | …01000110110001011 |
3 | 1011210010201010121020 |
4 | 23131323220312023 |
5 | 200204203130011 |
6 | 5353501243523 |
7 | 614064414261 |
oct | 133573506613 |
9 | 34703633536 |
10 | 12313333131 |
11 | 5249612480 |
12 | 24778635a3 |
13 | 1213050348 |
14 | 84b4a2431 |
15 | 4c1015006 |
hex | 2ddee8d8b |
12313333131 has 16 divisors (see below), whose sum is σ = 18074622720. Its totient is φ = 7394159520.
The previous prime is 12313333111. The next prime is 12313333177. The reversal of 12313333131 is 13133331321.
It is not a de Polignac number, because 12313333131 - 214 = 12313316747 is a prime.
It is a super-2 number, since 2×123133331312 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12313333111) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1708015 + ... + 1715208.
It is an arithmetic number, because the mean of its divisors is an integer number (1129663920).
Almost surely, 212313333131 is an apocalyptic number.
12313333131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
12313333131 is a deficient number, since it is larger than the sum of its proper divisors (5761289589).
12313333131 is a wasteful number, since it uses less digits than its factorization.
12313333131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3423346.
The product of its digits is 1458, while the sum is 24.
Adding to 12313333131 its reverse (13133331321), we get a palindrome (25446664452).
It can be divided in two parts, 1 and 2313333131, that added together give a palindrome (2313333132).
The spelling of 12313333131 in words is "twelve billion, three hundred thirteen million, three hundred thirty-three thousand, one hundred thirty-one".
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