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Numbers / 398

The Number 398

398 is composite: factorization 2 × 199. That gives 398 exactly 4 divisors: 1, 2, 199, 398. 398's proper divisors total just 202, 196 short of 398, the deficient case most of 398's neighbors share too. 398 has a digit sum of 20; for 398, the digital root works out to 2. 398: 2 all divide 398 evenly, out of 2-12. 398 is 110001110 in binary and 18E in hex; as a Roman numeral it's CCCXCVIII.

Factors
1, 2, 199, 398
Number of factors
4
Prime?
No
Prime factorization
2 x 199
Even or odd
Even
Square
158404
Cube
63044792
Binary
110001110
Hexadecimal
18E
Roman numeral
CCCXCVIII
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Factors of 398 in detail →Is 398 prime? →