Base | Representation |
---|---|
bin | 1100100011001… |
… | …00011010110011 |
3 | 21100002012210201 |
4 | 12101210122303 |
5 | 203422101130 |
6 | 14240140031 |
7 | 2415525313 |
oct | 621443263 |
9 | 240065721 |
10 | 105268915 |
11 | 54470104 |
12 | 2b307617 |
13 | 18a69acb |
14 | dda3443 |
15 | 9395bca |
hex | 64646b3 |
105268915 has 4 divisors (see below), whose sum is σ = 126322704. Its totient is φ = 84215128.
The previous prime is 105268909. The next prime is 105268939. The reversal of 105268915 is 519862501.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 519862501 = 4973 ⋅104537.
It is a cyclic number.
It is not a de Polignac number, because 105268915 - 213 = 105260723 is a prime.
It is a super-2 number, since 2×1052689152 = 22163088930554450, which contains 22 as substring.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10526887 + ... + 10526896.
It is an arithmetic number, because the mean of its divisors is an integer number (31580676).
Almost surely, 2105268915 is an apocalyptic number.
105268915 is a deficient number, since it is larger than the sum of its proper divisors (21053789).
105268915 is an equidigital number, since it uses as much as digits as its factorization.
105268915 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21053788.
The product of its (nonzero) digits is 21600, while the sum is 37.
The square root of 105268915 is about 10260.0640836205. The cubic root of 105268915 is about 472.1718034803.
The spelling of 105268915 in words is "one hundred five million, two hundred sixty-eight thousand, nine hundred fifteen".
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