Base | Representation |
---|---|
bin | 100010011111… |
… | …0000100011000 |
3 | 1021000120010112 |
4 | 1010332010120 |
5 | 14112030044 |
6 | 1443303452 |
7 | 306451304 |
oct | 104760430 |
9 | 37016115 |
10 | 18080024 |
11 | a229876 |
12 | 607ab88 |
13 | 3990551 |
14 | 2588d04 |
15 | 18c209e |
hex | 113e118 |
18080024 has 32 divisors (see below), whose sum is σ = 35773920. Its totient is φ = 8549376.
The previous prime is 18080011. The next prime is 18080033. The reversal of 18080024 is 42008081.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17342 + ... + 18354.
It is an arithmetic number, because the mean of its divisors is an integer number (1117935).
Almost surely, 218080024 is an apocalyptic number.
It is an amenable number.
18080024 is a deficient number, since it is larger than the sum of its proper divisors (17693896).
18080024 is a wasteful number, since it uses less digits than its factorization.
18080024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1139 (or 1135 counting only the distinct ones).
The product of its (nonzero) digits is 512, while the sum is 23.
The square root of 18080024 is about 4252.0611472555. The cubic root of 18080024 is about 262.4619397577.
The spelling of 18080024 in words is "eighteen million, eighty thousand, twenty-four".
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