639
Number 639 properties
- 639 is an odd number.
Number 639 - properties and curiosities
639 (number)
Prime factorization
Prime factorization of 639: 3^2 × 71.
Divisors
Divisor count: 6
1, 3, 9, 71, 213, 639
Factors of 639 are: 1, 3, 9, 71, 213, 639.
Representations
In octal, 639 is represented as 1177.
In binary, 639 is represented as 1001111111.
In hex, 639 is represented as 27F.
Roman numeral: DCXXXIX
Curiosities
- 639 has unique arithmetic behavior worth exploring through its factors and representations.
Related numbers
Nearby primes: 617, 619, 631, 641, 643, 647
Quick answers
Is 639 prime?
No, 639 is not prime.
What are the factors of 639?
1, 3, 9, 71, 213, 639
What is 639 in binary?
1001111111