Base | Representation |
---|---|
bin | 100010100010… |
… | …1100110011000 |
3 | 1021002010110001 |
4 | 1011011212120 |
5 | 14114021442 |
6 | 1444102344 |
7 | 306640243 |
oct | 105054630 |
9 | 37063401 |
10 | 18110872 |
11 | a24aa6a |
12 | 60949b4 |
13 | 39a15c0 |
14 | 259625a |
15 | 18cb2b7 |
hex | 1145998 |
18110872 has 16 divisors (see below), whose sum is σ = 36570240. Its totient is φ = 8358816.
The previous prime is 18110861. The next prime is 18110879. The reversal of 18110872 is 27801181.
It is a self number, because there is not a number n which added to its sum of digits gives 18110872.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18110879) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86968 + ... + 87175.
It is an arithmetic number, because the mean of its divisors is an integer number (2285640).
Almost surely, 218110872 is an apocalyptic number.
It is an amenable number.
18110872 is an abundant number, since it is smaller than the sum of its proper divisors (18459368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18110872 is a wasteful number, since it uses less digits than its factorization.
18110872 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 174162 (or 174158 counting only the distinct ones).
The product of its (nonzero) digits is 896, while the sum is 28.
The square root of 18110872 is about 4255.6870185670. The cubic root of 18110872 is about 262.6111251348.
The spelling of 18110872 in words is "eighteen million, one hundred ten thousand, eight hundred seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •