Base | Representation |
---|---|
bin | 1100111110010… |
… | …10000101011001 |
3 | 21120210012011012 |
4 | 12133022011121 |
5 | 210330043230 |
6 | 14444343305 |
7 | 2461022510 |
oct | 637120531 |
9 | 246705135 |
10 | 108831065 |
11 | 56483432 |
12 | 30544b35 |
13 | 197162a5 |
14 | 1064d677 |
15 | 984b395 |
hex | 67ca159 |
108831065 has 16 divisors (see below), whose sum is σ = 152727168. Its totient is φ = 72890496.
The previous prime is 108831043. The next prime is 108831067. The reversal of 108831065 is 560138801.
It is not a de Polignac number, because 108831065 - 212 = 108826969 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (108831067) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34652 + ... + 37661.
It is an arithmetic number, because the mean of its divisors is an integer number (9545448).
Almost surely, 2108831065 is an apocalyptic number.
It is an amenable number.
108831065 is a deficient number, since it is larger than the sum of its proper divisors (43896103).
108831065 is an equidigital number, since it uses as much as digits as its factorization.
108831065 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72368.
The product of its (nonzero) digits is 5760, while the sum is 32.
The square root of 108831065 is about 10432.2128525064. The cubic root of 108831065 is about 477.4387081769.
Adding to 108831065 its reverse (560138801), we get a palindrome (668969866).
The spelling of 108831065 in words is "one hundred eight million, eight hundred thirty-one thousand, sixty-five".
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