Base | Representation |
---|---|
bin | 111110111100010… |
… | …1111001001100101 |
3 | 12110012010222220011 |
4 | 1331320233021211 |
5 | 13311134301224 |
6 | 545324010221 |
7 | 103223626561 |
oct | 17570571145 |
9 | 5405128804 |
10 | 2112025189 |
11 | 99420186a |
12 | 4ab390971 |
13 | 27873b461 |
14 | 1606da6a1 |
15 | c5640394 |
hex | 7de2f265 |
2112025189 has 2 divisors, whose sum is σ = 2112025190. Its totient is φ = 2112025188.
The previous prime is 2112025187. The next prime is 2112025247. The reversal of 2112025189 is 9815202112.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1396890625 + 715134564 = 37375^2 + 26742^2 .
It is a cyclic number.
It is not a de Polignac number, because 2112025189 - 21 = 2112025187 is a prime.
Together with 2112025187, it forms a pair of twin primes.
It is a self number, because there is not a number n which added to its sum of digits gives 2112025189.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2112025187) 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, 1056012594 + 1056012595.
It is an arithmetic number, because the mean of its divisors is an integer number (1056012595).
Almost surely, 22112025189 is an apocalyptic number.
It is an amenable number.
2112025189 is a deficient number, since it is larger than the sum of its proper divisors (1).
2112025189 is an equidigital number, since it uses as much as digits as its factorization.
2112025189 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2880, while the sum is 31.
The square root of 2112025189 is about 45956.7752241168. The cubic root of 2112025189 is about 1283.0188326461.
The spelling of 2112025189 in words is "two billion, one hundred twelve million, twenty-five thousand, one hundred eighty-nine".
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