261
Number 261 properties
- 261 is an odd number.
- 261 is a Harshad number, which means it is divisible by the sum of its digits (261 = 9, and 261 is divisible by 9).
Number 261 - properties and curiosities
261 (number)
Prime factorization
Prime factorization of 261: 3^2 × 29.
Divisors
Divisor count: 6
1, 3, 9, 29, 87, 261
Factors of 261 are: 1, 3, 9, 29, 87, 261.
Representations
In octal, 261 is represented as 405.
In binary, 261 is represented as 100000101.
In hex, 261 is represented as 105.
Roman numeral: CCLXI
Curiosities
- 261 is divisible by the sum of its digits.
Related numbers
Quick answers
Is 261 prime?
No, 261 is not prime.
What are the factors of 261?
1, 3, 9, 29, 87, 261
What is 261 in binary?
100000101