Base | Representation |
---|---|
bin | 100010110000… |
… | …1101000001011 |
3 | 1021021221221000 |
4 | 1011201220023 |
5 | 14131210200 |
6 | 1450350043 |
7 | 310626036 |
oct | 105415013 |
9 | 37257830 |
10 | 18225675 |
11 | a319246 |
12 | 612b323 |
13 | 3a11930 |
14 | 25c601d |
15 | 1900300 |
hex | 1161a0b |
18225675 has 96 divisors (see below), whose sum is σ = 37775360. Its totient is φ = 8553600.
The previous prime is 18225673. The next prime is 18225733. The reversal of 18225675 is 57652281.
It is a happy number.
It is not a de Polignac number, because 18225675 - 21 = 18225673 is a prime.
It is not an unprimeable number, because it can be changed into a prime (18225671) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 271992 + ... + 272058.
Almost surely, 218225675 is an apocalyptic number.
18225675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
18225675 is an abundant number, since it is smaller than the sum of its proper divisors (19549685).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18225675 is a wasteful number, since it uses less digits than its factorization.
18225675 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 130 (or 119 counting only the distinct ones).
The product of its digits is 33600, while the sum is 36.
The square root of 18225675 is about 4269.1538974368. The cubic root of 18225675 is about 263.1648453076.
The spelling of 18225675 in words is "eighteen million, two hundred twenty-five thousand, six hundred seventy-five".
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