21006
Number 21006: Properties, Factors, and Mathematical Facts
Short answer
The number 21006 is an even composite number with 16 positive divisors. Its prime factorization is 2 × 3³ × 389. It is also an abundant number, which gives it several notable mathematical relationships.
Is 21006 prime?
ClassificationCompositeParityEvenDivisor count16AbundanceAbundant
What is the prime factorization of 21006?
Prime factorization
2 times 3 cubed times 389
What are the divisors of 21006?
Divisor count
16
Divisor sum
46,800
Proper divisor sum
25,794
- 1
- 2
- 3
- 6
- 9
- 18
- 27
- 54
- 389
- 778
- 1167
- 2334
- 3501
- 7002
- 10503
- 21006
How is 21006 classified?
How is 21006 represented in other numeral systems?
Decimal
21006
Binary
101001000001110
Octal
51016
Hexadecimal
520E
Roman
No conventional Roman numeral
In words
twenty one thousand six
Roots and powers
Square root
144.934468 Approximate
Cube root
27.591869 Approximate
Nearest lower square
20736
Nearest higher square
21025
Nearest lower cube
19683
Nearest higher cube
21952
What are the digit properties of 21006?
Which numbers are related to 21006?
Why these results are true
- 21006 is composite because it has positive divisors other than 1 and itself.
- 21006 is abundant because the sum of its proper divisors (25794) is greater than 21006.
Compare this number
FAQ for 21006
- Is 21006 prime?
- No
- What is the prime factorization of 21006?
- 2 × 3³ × 389
- Is 21006 a perfect square?
- No
- What is 21006 in binary?
- 101001000001110