81003
Number 81003: Properties, Factors, and Mathematical Facts
Short answer
The number 81003 is an odd composite number with 16 positive divisors. Its prime factorization is 3 × 13 × 31 × 67. It is also a deficient number and a triangular number, which gives it several notable mathematical relationships.
Is 81003 prime?
ClassificationCompositeParityOddDivisor count16AbundanceDeficient
What is the prime factorization of 81003?
Prime factorization
3 times 13 times 31 times 67
What are the divisors of 81003?
Divisor count
16
Divisor sum
121,856
Proper divisor sum
40,853
- 1
- 3
- 13
- 31
- 39
- 67
- 93
- 201
- 403
- 871
- 1209
- 2077
- 2613
- 6231
- 27001
- 81003
How is 81003 classified?
Prime
CompositeLearn more →
Perfect square
No
Perfect cube
No
Fibonacci
No
Triangular
YesLearn more →
Power of two
No
How is 81003 represented in other numeral systems?
Decimal
81003
Binary
10011110001101011
Octal
236153
Hexadecimal
13C6B
Roman
No conventional Roman numeral
In words
eighty one thousand three
Roots and powers
Square root
284.610260 Approximate
Cube root
43.268021 Approximate
Nearest lower square
80656
Nearest higher square
81225
Nearest lower cube
79507
Nearest higher cube
85184
Sequence position
Triangular
Index: 402
What are the digit properties of 81003?
Which numbers are related to 81003?
Why these results are true
- 81003 is composite because it has positive divisors other than 1 and itself.
- 81003 is triangular because it equals 402×(402+1)/2.
Compare this number
FAQ for 81003
- Is 81003 prime?
- No
- What is the prime factorization of 81003?
- 3 × 13 × 31 × 67
- Is 81003 a perfect square?
- No
- What is 81003 in binary?
- 10011110001101011