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Numbers / 387

The Number 387

387 is composite: factorization 3^2 × 43. That gives 387 exactly 6 divisors: 1, 3, 9, 43, 129, 387. 387's proper divisors total just 185, 202 short of 387, the deficient case most of 387's neighbors share too. 387 has a digit sum of 18; for 387, the digital root works out to 9. 387: 3, 9 all divide 387 evenly, out of 2-12. 387 is 110000011 in binary and 183 in hex; as a Roman numeral it's CCCLXXXVII.

Factors
1, 3, 9, 43, 129, 387
Number of factors
6
Prime?
No
Prime factorization
3^2 x 43
Even or odd
Odd
Square
149769
Cube
57960603
Binary
110000011
Hexadecimal
183
Roman numeral
CCCLXXXVII
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Factors of 387 in detail →Is 387 prime? →