The important features of a hexadecimal number system are as follows:
1. Base: The base of hexadecimal system is 16.
2. Number of values assumed by each digit: The number of values assumed by each digit is 16. The values include digits 0 through 9 and letters A, B, C, D, E, F. Hence the sixteen possible values are: 0 1 2 3 4 5 6 7 8 9 A B C D E F.
3. 0 represents the least significant digit whereas F represents the most significant digit.
4. The base of 16 needs 16 digits. Hence it borrows 0 through 9 but needs another 6. For these the first six letters A, B, C, D, E, F are used. Here A represents 10, B represents 11 and so on. The hexadecimal digits and their values are as shown in Table.
5. When dealing with large values, binary numbers quickly become too unwidely. The hexadecimal (base 16) numbering system solves this problem. Hexadecimal numbers offer the two features:
- Hex numbers are very compact.
- It is easy to convert from hex to binary and binary to hex.
6. Largest value of a digit: The largest value of a digit in the hexadecimal number system is 15 and it is represented by F.
7. Positional weights; The positional weights for a hexadecimal number to the left and right of decimal point are shown below:
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