Base | Representation |
---|---|
bin | 100000000000111010111… |
… | …100100110101000110101 |
3 | 21210022121122010102111102 |
4 | 200000322330212220311 |
5 | 242021111112032411 |
6 | 4402401025015445 |
7 | 314642232221531 |
oct | 40007274465065 |
9 | 7708548112442 |
10 | 2200012220981 |
11 | 7790245a9873 |
12 | 2b6463784585 |
13 | 12c5ca271ca3 |
14 | 786a4432bc1 |
15 | 3c362567d3b |
hex | 2003af26a35 |
2200012220981 has 2 divisors, whose sum is σ = 2200012220982. Its totient is φ = 2200012220980.
The previous prime is 2200012220951. The next prime is 2200012221031. The reversal of 2200012220981 is 1890222100022.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1527831963025 + 672180257956 = 1236055^2 + 819866^2 .
It is a cyclic number.
It is not a de Polignac number, because 2200012220981 - 234 = 2182832351797 is a prime.
It is a super-2 number, since 2×22000122209812 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2200012220941) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100006110490 + 1100006110491.
It is an arithmetic number, because the mean of its divisors is an integer number (1100006110491).
Almost surely, 22200012220981 is an apocalyptic number.
It is an amenable number.
2200012220981 is a deficient number, since it is larger than the sum of its proper divisors (1).
2200012220981 is an equidigital number, since it uses as much as digits as its factorization.
2200012220981 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2304, while the sum is 29.
The spelling of 2200012220981 in words is "two trillion, two hundred billion, twelve million, two hundred twenty thousand, nine hundred eighty-one".
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