Base | Representation |
---|---|
bin | 11000011100011010… |
… | …11101001010000100 |
3 | 1020212120211020021101 |
4 | 30032031131022010 |
5 | 203334031411322 |
6 | 10010114025444 |
7 | 643131203425 |
oct | 141615351204 |
9 | 36776736241 |
10 | 13123310212 |
11 | 5624848221 |
12 | 2662b78284 |
13 | 1311ab751c |
14 | 8c6ca764c |
15 | 51c1ad327 |
hex | 30e35d284 |
13123310212 has 24 divisors (see below), whose sum is σ = 23015486592. Its totient is φ = 6547476000.
The previous prime is 13123310141. The next prime is 13123310227. The reversal of 13123310212 is 21201332131.
It is a self number, because there is not a number n which added to its sum of digits gives 13123310212.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5580837 + ... + 5583187.
It is an arithmetic number, because the mean of its divisors is an integer number (958978608).
Almost surely, 213123310212 is an apocalyptic number.
It is an amenable number.
13123310212 is a deficient number, since it is larger than the sum of its proper divisors (9892176380).
13123310212 is a wasteful number, since it uses less digits than its factorization.
13123310212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4779 (or 4777 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 13123310212 its reverse (21201332131), we get a palindrome (34324642343).
The spelling of 13123310212 in words is "thirteen billion, one hundred twenty-three million, three hundred ten thousand, two hundred twelve".
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