Base | Representation |
---|---|
bin | 10110111100000110… |
… | …00101000010101111 |
3 | 1011210021101020011222 |
4 | 23132003011002233 |
5 | 200210203034011 |
6 | 5354011133555 |
7 | 614120120000 |
oct | 133603050257 |
9 | 34707336158 |
10 | 12315283631 |
11 | 524a724962 |
12 | 24784442bb |
13 | 12135840a1 |
14 | 84b84d1a7 |
15 | 4c129cddb |
hex | 2de0c50af |
12315283631 has 20 divisors (see below), whose sum is σ = 14379751392. Its totient is φ = 10546574976.
The previous prime is 12315283609. The next prime is 12315283649. The reversal of 12315283631 is 13638251321.
12315283631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12315283631 - 26 = 12315283567 is a prime.
It is a super-2 number, since 2×123152836312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12315283591 and 12315283600.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12315283031) 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 19 ways as a sum of consecutive naturals, for example, 4841546 + ... + 4844088.
Almost surely, 212315283631 is an apocalyptic number.
12315283631 is a deficient number, since it is larger than the sum of its proper divisors (2064467761).
12315283631 is an frugal number, since it uses more digits than its factorization.
12315283631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4588 (or 4567 counting only the distinct ones).
The product of its digits is 25920, while the sum is 35.
The spelling of 12315283631 in words is "twelve billion, three hundred fifteen million, two hundred eighty-three thousand, six hundred thirty-one".
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