Base | Representation |
---|---|
bin | 10110111110000110… |
… | …10100001101100101 |
3 | 1011211110001202102121 |
4 | 23133003110031211 |
5 | 200224010413411 |
6 | 5355412105541 |
7 | 614413213213 |
oct | 133703241545 |
9 | 34743052377 |
10 | 12332122981 |
11 | 5259186582 |
12 | 24820052b1 |
13 | 1216bcb9b9 |
14 | 84db93cb3 |
15 | 4c29c7571 |
hex | 2df0d4365 |
12332122981 has 2 divisors, whose sum is σ = 12332122982. Its totient is φ = 12332122980.
The previous prime is 12332122969. The next prime is 12332123021. The reversal of 12332122981 is 18922123321.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 11512217025 + 819905956 = 107295^2 + 28634^2 .
It is an emirp because it is prime and its reverse (18922123321) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12332122981 - 29 = 12332122469 is a prime.
It is a super-2 number, since 2×123321229812 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12332122921) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6166061490 + 6166061491.
It is an arithmetic number, because the mean of its divisors is an integer number (6166061491).
Almost surely, 212332122981 is an apocalyptic number.
It is an amenable number.
12332122981 is a deficient number, since it is larger than the sum of its proper divisors (1).
12332122981 is an equidigital number, since it uses as much as digits as its factorization.
12332122981 is an evil number, because the sum of its binary digits is even.
The product of its digits is 10368, while the sum is 34.
The spelling of 12332122981 in words is "twelve billion, three hundred thirty-two million, one hundred twenty-two thousand, nine hundred eighty-one".
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