Base | Representation |
---|---|
bin | 1000011111110110… |
… | …1100111010010101 |
3 | 12212222021211102111 |
4 | 2013331230322111 |
5 | 14132430131101 |
6 | 1014203511021 |
7 | 110346010054 |
oct | 20775547225 |
9 | 5788254374 |
10 | 2281098901 |
11 | a70691404 |
12 | 537b28471 |
13 | 2a4787c83 |
14 | 178d4c39b |
15 | d53db251 |
hex | 87f6ce95 |
2281098901 has 2 divisors, whose sum is σ = 2281098902. Its totient is φ = 2281098900.
The previous prime is 2281098881. The next prime is 2281098923. The reversal of 2281098901 is 1098901822.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2280158001 + 940900 = 47751^2 + 970^2 .
It is a cyclic number.
It is not a de Polignac number, because 2281098901 - 215 = 2281066133 is a prime.
It is a super-2 number, since 2×22810989012 = 10406824392286815602, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2281090901) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140549450 + 1140549451.
It is an arithmetic number, because the mean of its divisors is an integer number (1140549451).
Almost surely, 22281098901 is an apocalyptic number.
It is an amenable number.
2281098901 is a deficient number, since it is larger than the sum of its proper divisors (1).
2281098901 is an equidigital number, since it uses as much as digits as its factorization.
2281098901 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 20736, while the sum is 40.
The square root of 2281098901 is about 47760.8511335382. The cubic root of 2281098901 is about 1316.3802921984.
The spelling of 2281098901 in words is "two billion, two hundred eighty-one million, ninety-eight thousand, nine hundred one".
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