Base | Representation |
---|---|
bin | 110001010000100001… |
… | …0001010011011110011 |
3 | 101010001001110012022012 |
4 | 1202201002022123303 |
5 | 3213114403221112 |
6 | 120332312033135 |
7 | 10433230634624 |
oct | 1424102123363 |
9 | 333031405265 |
10 | 105780913907 |
11 | 409526282a9 |
12 | 186019927ab |
13 | 9c8a39aa66 |
14 | 5196b1da4b |
15 | 2b419e8022 |
hex | 18a108a6f3 |
105780913907 has 2 divisors, whose sum is σ = 105780913908. Its totient is φ = 105780913906.
The previous prime is 105780913873. The next prime is 105780913939. The reversal of 105780913907 is 709319087501.
It is a strong prime.
It is an emirp because it is prime and its reverse (709319087501) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 105780913907 - 224 = 105764136691 is a prime.
It is a super-2 number, since 2×1057809139072 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (105780913307) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52890456953 + 52890456954.
It is an arithmetic number, because the mean of its divisors is an integer number (52890456954).
Almost surely, 2105780913907 is an apocalyptic number.
105780913907 is a deficient number, since it is larger than the sum of its proper divisors (1).
105780913907 is an equidigital number, since it uses as much as digits as its factorization.
105780913907 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 476280, while the sum is 50.
The spelling of 105780913907 in words is "one hundred five billion, seven hundred eighty million, nine hundred thirteen thousand, nine hundred seven".
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