Base | Representation |
---|---|
bin | 1100100100010… |
… | …11110000000011 |
3 | 21100101101210112 |
4 | 12102023300003 |
5 | 203442230034 |
6 | 14243421535 |
7 | 2420066102 |
oct | 622136003 |
9 | 240341715 |
10 | 105430019 |
11 | 54570152 |
12 | 2b3848ab |
13 | 18ac5236 |
14 | 10006039 |
15 | 93c87ce |
hex | 648bc03 |
105430019 has 2 divisors, whose sum is σ = 105430020. Its totient is φ = 105430018.
The previous prime is 105430009. The next prime is 105430027. The reversal of 105430019 is 910034501.
It is a happy number.
It is a strong prime.
It is an emirp because it is prime and its reverse (910034501) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 105430019 - 28 = 105429763 is a prime.
It is a super-2 number, since 2×1054300192 = 22230977812680722, which contains 22 as substring.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 105429976 and 105430003.
It is not a weakly prime, because it can be changed into another prime (105430009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52715009 + 52715010.
It is an arithmetic number, because the mean of its divisors is an integer number (52715010).
Almost surely, 2105430019 is an apocalyptic number.
105430019 is a deficient number, since it is larger than the sum of its proper divisors (1).
105430019 is an equidigital number, since it uses as much as digits as its factorization.
105430019 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 540, while the sum is 23.
The square root of 105430019 is about 10267.9121051945. The cubic root of 105430019 is about 472.4125519604.
The spelling of 105430019 in words is "one hundred five million, four hundred thirty thousand, nineteen".
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