Base | Representation |
---|---|
bin | 11110111001110010011011 |
3 | 120020120111202 |
4 | 132321302123 |
5 | 4033213034 |
6 | 445344415 |
7 | 125600063 |
oct | 36716233 |
9 | 16216452 |
10 | 8101019 |
11 | 4633463 |
12 | 286810b |
13 | 18a8404 |
14 | 110c3a3 |
15 | aa047e |
hex | 7b9c9b |
8101019 has 2 divisors, whose sum is σ = 8101020. Its totient is φ = 8101018.
The previous prime is 8100979. The next prime is 8101021. The reversal of 8101019 is 9101018.
8101019 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 8101019 - 212 = 8096923 is a prime.
It is a super-2 number, since 2×81010192 = 131253017676722, which contains 22 as substring.
Together with 8101021, 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 (8101319) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4050509 + 4050510.
It is an arithmetic number, because the mean of its divisors is an integer number (4050510).
Almost surely, 28101019 is an apocalyptic number.
8101019 is a deficient number, since it is larger than the sum of its proper divisors (1).
8101019 is an equidigital number, since it uses as much as digits as its factorization.
8101019 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 72, while the sum is 20.
The square root of 8101019 is about 2846.2289085736. The cubic root of 8101019 is about 200.8383063033.
Subtracting 8101019 from its reverse (9101018), we obtain a palindrome (999999).
The spelling of 8101019 in words is "eight million, one hundred one thousand, nineteen".
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