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Numbers / 425

The Number 425

425 is composite: factorization 5^2 × 17. That gives 425 exactly 6 divisors: 1, 5, 17, 25, 85, 425. 425's proper divisors total just 133, 292 short of 425, the deficient case most of 425's neighbors share too. 425 has a digit sum of 11; for 425, the digital root works out to 2. 425: 5 all divide 425 evenly, out of 2-12. 425 is 110101001 in binary and 1A9 in hex; as a Roman numeral it's CDXXV.

Factors
1, 5, 17, 25, 85, 425
Number of factors
6
Prime?
No
Prime factorization
5^2 x 17
Even or odd
Odd
Square
180625
Cube
76765625
Binary
110101001
Hexadecimal
1A9
Roman numeral
CDXXV
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Factors of 425 in detail →Is 425 prime? →