MathQuarryCalculators

Numbers / 266

The Number 266

266 is composite: factorization 2 × 7 × 19. That gives 266 exactly 8 divisors: 1, 2, 7, 14, 19, 38, 133, 266. 266's proper divisors total just 214, 52 short of 266, the deficient case most of 266's neighbors share too. 266 has a digit sum of 14; for 266, the digital root works out to 5. 266: 2, 7 all divide 266 evenly, out of 2-12. 266 is 100001010 in binary and 10A in hex; as a Roman numeral it's CCLXVI.

Factors
1, 2, 7, 14, 19, 38, 133, 266
Number of factors
8
Prime?
No
Prime factorization
2 x 7 x 19
Even or odd
Even
Square
70756
Cube
18821096
Binary
100001010
Hexadecimal
10A
Roman numeral
CCLXVI
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Factors of 266 in detail →Is 266 prime? →