Base | Representation |
---|---|
bin | 100010110001… |
… | …0110010110010 |
3 | 1021022012110212 |
4 | 1011202302302 |
5 | 14131333300 |
6 | 1450424122 |
7 | 310646000 |
oct | 105426262 |
9 | 37265425 |
10 | 18230450 |
11 | a321897 |
12 | 6132042 |
13 | 3a13b64 |
14 | 25c7a70 |
15 | 1901935 |
hex | 1162cb2 |
18230450 has 48 divisors (see below), whose sum is σ = 39580800. Its totient is φ = 6244560.
The previous prime is 18230447. The next prime is 18230479. The reversal of 18230450 is 5403281.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16619 + ... + 17681.
It is an arithmetic number, because the mean of its divisors is an integer number (824600).
Almost surely, 218230450 is an apocalyptic number.
18230450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18230450 is an abundant number, since it is smaller than the sum of its proper divisors (21350350).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18230450 is a wasteful number, since it uses less digits than its factorization.
18230450 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1096 (or 1077 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 23.
The square root of 18230450 is about 4269.7131051161. The cubic root of 18230450 is about 263.1878257535.
The spelling of 18230450 in words is "eighteen million, two hundred thirty thousand, four hundred fifty".
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