840
Number 840 properties
- 840 is an even number.
- 840 is a Harshad number, which means it is divisible by the sum of its digits (840 = 12, and 840 is divisible by 12).
Number 840 - properties and curiosities
840 (number)
Prime factorization
Prime factorization of 840: 2^3 × 3 × 5 × 7.
Divisors
Divisor count: 32
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
Factors of 840 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280.
Representations
In octal, 840 is represented as 1510.
In binary, 840 is represented as 1101001000.
In hex, 840 is represented as 348.
Roman numeral: DCCCXL
Curiosities
- 840 is divisible by the sum of its digits.
Related numbers
Quick answers
Is 840 prime?
No, 840 is not prime.
What are the factors of 840?
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280
What is 840 in binary?
1101001000