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Numbers / 26

The Number 26

26 is composite: factorization 2 × 13. That gives 26 exactly 4 divisors: 1, 2, 13, 26. 26's proper divisors total just 16, 10 short of 26, the deficient case most of 26's neighbors share too. 26 has a digit sum of 8; for 26, the digital root works out to 8. 26: 2 all divide 26 evenly, out of 2-12. 26 is 11010 in binary and 1A in hex; as a Roman numeral it's XXVI.

Factors
1, 2, 13, 26
Number of factors
4
Prime?
No
Prime factorization
2 x 13
Even or odd
Even
Square
676
Cube
17576
Binary
11010
Hexadecimal
1A
Roman numeral
XXVI
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Factors of 26 in detail →Is 26 prime? →