Base | Representation |
---|---|
bin | 10110111110001111… |
… | …00010110001101101 |
3 | 1011211112011001122020 |
4 | 23133013202301231 |
5 | 200224301344323 |
6 | 5355451540353 |
7 | 614425510212 |
oct | 133707426155 |
9 | 34745131566 |
10 | 12333231213 |
11 | 5259873176 |
12 | 248245a6b9 |
13 | 12171c9264 |
14 | 84dda1b09 |
15 | 4c2b45ae3 |
hex | 2df1e2c6d |
12333231213 has 16 divisors (see below), whose sum is σ = 17414320896. Its totient is φ = 7737297920.
The previous prime is 12333231149. The next prime is 12333231221. The reversal of 12333231213 is 31213233321.
It is a cyclic number.
It is not a de Polignac number, because 12333231213 - 26 = 12333231149 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12333231223) 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, 407308 + ... + 436538.
It is an arithmetic number, because the mean of its divisors is an integer number (1088395056).
Almost surely, 212333231213 is an apocalyptic number.
It is an amenable number.
12333231213 is a deficient number, since it is larger than the sum of its proper divisors (5081089683).
12333231213 is a wasteful number, since it uses less digits than its factorization.
12333231213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37524.
The product of its digits is 1944, while the sum is 24.
Adding to 12333231213 its reverse (31213233321), we get a palindrome (43546464534).
The spelling of 12333231213 in words is "twelve billion, three hundred thirty-three million, two hundred thirty-one thousand, two hundred thirteen".
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