Base | Representation |
---|---|
bin | 1100111010111… |
… | …01110011000000 |
3 | 21112221122201121 |
4 | 12131131303000 |
5 | 210221400040 |
6 | 14431042024 |
7 | 2454164413 |
oct | 635356300 |
9 | 245848647 |
10 | 108387520 |
11 | 5620016a |
12 | 30370314 |
13 | 195bc437 |
14 | 10575b7a |
15 | 97aec4a |
hex | 675dcc0 |
108387520 has 56 divisors (see below), whose sum is σ = 264133584. Its totient is φ = 42341376.
The previous prime is 108387511. The next prime is 108387527. The reversal of 108387520 is 25783801.
It is not an unprimeable number, because it can be changed into a prime (108387527) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9822 + ... + 17698.
Almost surely, 2108387520 is an apocalyptic number.
108387520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 108387520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132066792).
108387520 is an abundant number, since it is smaller than the sum of its proper divisors (155746064).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
108387520 is an equidigital number, since it uses as much as digits as its factorization.
108387520 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7937 (or 7927 counting only the distinct ones).
The product of its (nonzero) digits is 13440, while the sum is 34.
The square root of 108387520 is about 10410.9327151797. The cubic root of 108387520 is about 476.7892187103.
The spelling of 108387520 in words is "one hundred eight million, three hundred eighty-seven thousand, five hundred twenty".
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