1990
Number 1990: Properties, Factors, and Mathematical Facts
Short answer
The number 1990 is an even composite number with 8 positive divisors. Its prime factorization is 2 × 5 × 199. It is also a deficient number, which gives it several notable mathematical relationships.
Is 1990 prime?
ClassificationCompositeParityEvenDivisor count8AbundanceDeficient
What is the prime factorization of 1990?
Prime factorization
2 times 5 times 199
What are the divisors of 1990?
Divisor count
8
Divisor sum
3,600
Proper divisor sum
1,610
- 1
- 2
- 5
- 10
- 199
- 398
- 995
- 1990
How is 1990 classified?
How is 1990 represented in other numeral systems?
Decimal
1990
Binary
11111000110
Octal
3706
Hexadecimal
7C6
Roman
MCMXCLearn more →
In words
one thousand nine hundred ninety
Roots and powers
Square root
44.609416 Approximate
Cube root
12.578177 Approximate
Nearest lower square
1936
Nearest higher square
2025
Nearest lower cube
1728
Nearest higher cube
2197
What are the digit properties of 1990?
Which numbers are related to 1990?
Why these results are true
- 1990 is composite because it has positive divisors other than 1 and itself.
Compare this number
FAQ for 1990
- Is 1990 prime?
- No
- What is the prime factorization of 1990?
- 2 × 5 × 199
- Is 1990 a perfect square?
- No
- What is 1990 in binary?
- 11111000110
- What is 1990 in Roman numerals?
- MCMXC