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Numbers / 125

The Number 125

125 is composite: factorization 5^3. That gives 125 exactly 4 divisors: 1, 5, 25, 125. 125's proper divisors total just 31, 94 short of 125, the deficient case most of 125's neighbors share too. 125 is also a perfect cube, since 5³ = 125. 125 has a digit sum of 8; for 125, the digital root works out to 8. 125: 5 all divide 125 evenly, out of 2-12. 125 is 1111101 in binary and 7D in hex; as a Roman numeral it's CXXV.

Factors
1, 5, 25, 125
Number of factors
4
Prime?
No
Prime factorization
5^3
Even or odd
Odd
Square
15625
Cube
1953125
Binary
1111101
Hexadecimal
7D
Roman numeral
CXXV
Perfect square?
No
Perfect cube?
Yes
Perfect number?
No
Triangular number?
No
Fibonacci number?
No