MathQuarryCalculators

Numbers / 126

The Number 126

126 is composite: factorization 2 × 3^2 × 7. That gives 126 exactly 12 divisors: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126. 126's proper divisors total 186, 60 more than 126 itself, so 126 is abundant. 126 has a digit sum of 9; for 126, the digital root works out to 9. 126: 2, 3, 6, 7, 9 all divide 126 evenly, out of 2-12. 126 is 1111110 in binary and 7E in hex; as a Roman numeral it's CXXVI.

Factors
1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126
Number of factors
12
Prime?
No
Prime factorization
2 x 3^2 x 7
Even or odd
Even
Square
15876
Cube
2000376
Binary
1111110
Hexadecimal
7E
Roman numeral
CXXVI
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Factors of 126 in detail →Is 126 prime? →