Base | Representation |
---|---|
bin | 1100100011001… |
… | …11001001110101 |
3 | 21100002210011121 |
4 | 12101213021311 |
5 | 203422430432 |
6 | 14240303541 |
7 | 2415603055 |
oct | 621471165 |
9 | 240083147 |
10 | 105280117 |
11 | 54478568 |
12 | 2b311bb1 |
13 | 18a71c37 |
14 | dda7565 |
15 | 9399197 |
hex | 6467275 |
105280117 has 2 divisors, whose sum is σ = 105280118. Its totient is φ = 105280116.
The previous prime is 105280093. The next prime is 105280151. The reversal of 105280117 is 711082501.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 89984196 + 15295921 = 9486^2 + 3911^2 .
It is an emirp because it is prime and its reverse (711082501) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 105280117 - 27 = 105279989 is a prime.
It is a super-2 number, since 2×1052801172 = 22167806071067378, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 105280091 and 105280100.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (105281117) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52640058 + 52640059.
It is an arithmetic number, because the mean of its divisors is an integer number (52640059).
Almost surely, 2105280117 is an apocalyptic number.
It is an amenable number.
105280117 is a deficient number, since it is larger than the sum of its proper divisors (1).
105280117 is an equidigital number, since it uses as much as digits as its factorization.
105280117 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 560, while the sum is 25.
The square root of 105280117 is about 10260.6099721215. The cubic root of 105280117 is about 472.1885513206.
The spelling of 105280117 in words is "one hundred five million, two hundred eighty thousand, one hundred seventeen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.098 sec. • engine limits •