1980
Number 1980 properties
- 1980 is an even number.
- 1980 is a Harshad number, which means it is divisible by the sum of its digits (1980 = 18, and 1980 is divisible by 18).
Number 1980 - properties and curiosities
1980 (number)
Prime factorization
Prime factorization of 1980: 2^2 × 3^2 × 5 × 11.
Divisors
Divisor count: 36
1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980
Factors of 1980 are: 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220.
Representations
In octal, 1980 is represented as 3674.
In binary, 1980 is represented as 11110111100.
In hex, 1980 is represented as 7BC.
Roman numeral: MCMLXXX
Curiosities
- 1980 is divisible by the sum of its digits.
Related numbers
Quick answers
Is 1980 prime?
No, 1980 is not prime.
What are the factors of 1980?
1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220
What is 1980 in binary?
11110111100