Base | Representation |
---|---|
bin | 100000001010010100010… |
… | …011000010101111100001 |
3 | 21211021122202100011201101 |
4 | 200022110103002233201 |
5 | 242202241402210311 |
6 | 4411150111034401 |
7 | 315450240216112 |
oct | 40122423025741 |
9 | 7737582304641 |
10 | 2210101210081 |
11 | 782331574696 |
12 | 2b83ba50ba01 |
13 | 13054751921b |
14 | 78d8031c209 |
15 | 3c753152ec1 |
hex | 202944c2be1 |
2210101210081 has 2 divisors, whose sum is σ = 2210101210082. Its totient is φ = 2210101210080.
The previous prime is 2210101210039. The next prime is 2210101210111. The reversal of 2210101210081 is 1800121010122.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1451564726481 + 758536483600 = 1204809^2 + 870940^2 .
It is a cyclic number.
It is not a de Polignac number, because 2210101210081 - 217 = 2210101079009 is a prime.
It is a super-2 number, since 2×22101012100812 (a number of 25 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2210101210021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105050605040 + 1105050605041.
It is an arithmetic number, because the mean of its divisors is an integer number (1105050605041).
Almost surely, 22210101210081 is an apocalyptic number.
It is an amenable number.
2210101210081 is a deficient number, since it is larger than the sum of its proper divisors (1).
2210101210081 is an equidigital number, since it uses as much as digits as its factorization.
2210101210081 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 64, while the sum is 19.
The spelling of 2210101210081 in words is "two trillion, two hundred ten billion, one hundred one million, two hundred ten thousand, eighty-one".
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