It is used because it is easier to convert to and from binary to hexadecimal than decimal, and it uses less characters than binary.
For instance:
decimal: 65535
hex: FFFF
binary: 1111111111111111
If the above is decimal then in hexadecimal it is 2964492C2. If it is binary then in hexadecimal it is 7DA. If it is octal then in hexadecimal it is 49241208.
The hexadecimal for 14 is the letter E.
60 in hexadecimal would be 3C
2f
The value of x in hexadecimal is a numerical system that uses 16 symbols, 0-9 and A-F, to represent numbers.
The hexadecimal system is base 16.
hexadecimal numbers are the a positional numeral system with a radix, or base, of 16.16 distinct symbols are used in the hexadecimal numbers.
The number 11, (in hexadecimal) is the letter 'b'
n isn't used in the hexadecimal system, any more than it's used in decimal (everyday) numbers.
The first use of the term hexadecimal dates to 1954. It is unclear who invented the current hexadecimal notation - most likely IBM. Not all computers used hexadecimal until the end of the 70s or later. Hewlett-Packard continued to use octal instead of hexadecimal until after 1980.
hexadecimal numbers are the a positional numeral system with a radix, or base, of 16.16 distinct symbols are used in the hexadecimal numbers.
god knows
The answer depends on the base which was used for AF.
Hexadecimal is commonly used in comoputing to represent a memory byte.
One example : hexadecimal notation.
AAAAAAAAAAAA is the Hexadecimal.
If the above is decimal then in hexadecimal it is 2964492C2. If it is binary then in hexadecimal it is 7DA. If it is octal then in hexadecimal it is 49241208.