Base | Representation |
---|---|
bin | 10000111100001101… |
… | …101010010010110011 |
3 | 1201221200211222020002 |
4 | 100330031222102303 |
5 | 244223130131001 |
6 | 12204552340215 |
7 | 1212524104454 |
oct | 207415522263 |
9 | 51850758202 |
10 | 18190083251 |
11 | 779491185a |
12 | 36379a466b |
13 | 193b724b92 |
14 | c47b8b12b |
15 | 716e0446b |
hex | 43c36a4b3 |
18190083251 has 2 divisors, whose sum is σ = 18190083252. Its totient is φ = 18190083250.
The previous prime is 18190083229. The next prime is 18190083253. The reversal of 18190083251 is 15238009181.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 18190083251 - 234 = 1010214067 is a prime.
Together with 18190083253, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (18190083253) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9095041625 + 9095041626.
It is an arithmetic number, because the mean of its divisors is an integer number (9095041626).
Almost surely, 218190083251 is an apocalyptic number.
18190083251 is a deficient number, since it is larger than the sum of its proper divisors (1).
18190083251 is an equidigital number, since it uses as much as digits as its factorization.
18190083251 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 17280, while the sum is 38.
The spelling of 18190083251 in words is "eighteen billion, one hundred ninety million, eighty-three thousand, two hundred fifty-one".
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