Base | Representation |
---|---|
bin | 1000011111101000… |
… | …0100110001110001 |
3 | 12212220111112010221 |
4 | 2013322010301301 |
5 | 14132204214311 |
6 | 1014131253041 |
7 | 110334640021 |
oct | 20772046161 |
9 | 5786445127 |
10 | 2280148081 |
11 | a700a2002 |
12 | 53774a181 |
13 | 2a4514263 |
14 | 178b81a81 |
15 | d529e671 |
hex | 87e84c71 |
2280148081 has 2 divisors, whose sum is σ = 2280148082. Its totient is φ = 2280148080.
The previous prime is 2280148037. The next prime is 2280148093. The reversal of 2280148081 is 1808410822.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1152263025 + 1127885056 = 33945^2 + 33584^2 .
It is a cyclic number.
It is not a de Polignac number, because 2280148081 - 217 = 2280017009 is a prime.
It is a super-2 number, since 2×22801480812 = 10398150542575965122, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2280148021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140074040 + 1140074041.
It is an arithmetic number, because the mean of its divisors is an integer number (1140074041).
Almost surely, 22280148081 is an apocalyptic number.
It is an amenable number.
2280148081 is a deficient number, since it is larger than the sum of its proper divisors (1).
2280148081 is an equidigital number, since it uses as much as digits as its factorization.
2280148081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 8192, while the sum is 34.
The square root of 2280148081 is about 47750.8961277168. The cubic root of 2280148081 is about 1316.1973665254.
The spelling of 2280148081 in words is "two billion, two hundred eighty million, one hundred forty-eight thousand, eighty-one".
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