18225
Number 18225: Properties, Factors, and Mathematical Facts
Short answer
The number 18225 is an odd composite number with 21 positive divisors. Its prime factorization is 3⁶ × 5². It is also a deficient number and a perfect square, which gives it several notable mathematical relationships.
Is 18225 prime?
ClassificationCompositeParityOddDivisor count21AbundanceDeficient
What is the prime factorization of 18225?
Prime factorization
3 to the power of 6 times 5 squared
What are the divisors of 18225?
Divisor count
21
Divisor sum
33,883
Proper divisor sum
15,658
- 1
- 3
- 5
- 9
- 15
- 25
- 27
- 45
- 75
- 81
- 135
- 225
- 243
- 405
- 675
- 729
- 1215
- 2025
- 3645
- 6075
- 18225
How is 18225 classified?
Prime
CompositeLearn more →
Perfect square
YesLearn more →
Perfect cube
No
Fibonacci
No
Triangular
No
Power of two
No
How is 18225 represented in other numeral systems?
Decimal
18225
Binary
100011100110001
Octal
43461
Hexadecimal
4731
Roman
No conventional Roman numeral
In words
eighteen thousand two hundred twenty five
Roots and powers
Square root
135 Exact
Cube root
26.316160 Approximate
Nearest lower square
18225
Nearest higher square
18496
Nearest lower cube
17576
Nearest higher cube
19683
What are the digit properties of 18225?
Which numbers are related to 18225?
Why these results are true
- 18225 is composite because it has positive divisors other than 1 and itself.
Compare this number
FAQ for 18225
- Is 18225 prime?
- No
- What is the prime factorization of 18225?
- 3⁶ × 5²
- Is 18225 a perfect square?
- Yes
- What is 18225 in binary?
- 100011100110001