16491721
Number 16491721: Properties, Factors, and Mathematical Facts
Short answer
The number 16491721 is an odd composite number with 9 positive divisors. Its prime factorization is 31² × 131². It is also a deficient number and a perfect square, which gives it several notable mathematical relationships.
Is 16491721 prime?
ClassificationCompositeParityOddDivisor count9AbundanceDeficient
What is the prime factorization of 16491721?
Prime factorization
31 squared times 131 squared
What are the divisors of 16491721?
Divisor count
9
Divisor sum
17,171,949
Proper divisor sum
680,228
- 1
- 31
- 131
- 961
- 4061
- 17161
- 125891
- 531991
- 16491721
How is 16491721 classified?
Prime
CompositeLearn more →
Perfect square
YesLearn more →
Perfect cube
No
Fibonacci
No
Triangular
No
Power of two
No
How is 16491721 represented in other numeral systems?
Decimal
16491721
Binary
111110111010010011001001
Octal
76722311
Hexadecimal
FBA4C9
Roman
No conventional Roman numeral
In words
sixteen million four hundred ninety one thousand seven hundred twenty one
Roots and powers
Square root
4061 Exact
Cube root
254.539582 Approximate
Nearest lower square
16491721
Nearest higher square
16499844
Nearest lower cube
16387064
Nearest higher cube
16581375
What are the digit properties of 16491721?
Which numbers are related to 16491721?
Why these results are true
- 16491721 is composite because it has positive divisors other than 1 and itself.
Compare this number
FAQ for 16491721
- Is 16491721 prime?
- No
- What is the prime factorization of 16491721?
- 31² × 131²
- Is 16491721 a perfect square?
- Yes
- What is 16491721 in binary?
- 111110111010010011001001