Base | Representation |
---|---|
bin | 10110111011101111… |
… | …01111110110000111 |
3 | 1011210001210022112212 |
4 | 23131313233312013 |
5 | 200203423010343 |
6 | 5353423334035 |
7 | 614052635630 |
oct | 133567576607 |
9 | 34701708485 |
10 | 12312313223 |
11 | 5248a86181 |
12 | 247745131b |
13 | 1212a84052 |
14 | 84b2b8887 |
15 | 4c0db2c18 |
hex | 2dddefd87 |
12312313223 has 32 divisors (see below), whose sum is σ = 15162951168. Its totient is φ = 9757440000.
The previous prime is 12312313213. The next prime is 12312313249. The reversal of 12312313223 is 32231321321.
It is not a de Polignac number, because 12312313223 - 24 = 12312313207 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12312313213) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3195248 + ... + 3199098.
It is an arithmetic number, because the mean of its divisors is an integer number (473842224).
Almost surely, 212312313223 is an apocalyptic number.
12312313223 is a deficient number, since it is larger than the sum of its proper divisors (2850637945).
12312313223 is a wasteful number, since it uses less digits than its factorization.
12312313223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4343.
The product of its digits is 1296, while the sum is 23.
Adding to 12312313223 its reverse (32231321321), we get a palindrome (44543634544).
The spelling of 12312313223 in words is "twelve billion, three hundred twelve million, three hundred thirteen thousand, two hundred twenty-three".
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