In mathematics and computer science, **hexadecimal** (also **base 16**, or **hex**) is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols **0**–**9** to represent values zero to nine, and **A**, **B**, **C**, **D**, **E**, **F** (or alternatively **a**–**f**) to represent values ten to fifteen. For example, the hexadecimal number 2AF3 is equal, in decimal, to (2 × 163) + (10 × 162) + (15 × 161) + (3 × 160), or 10995.

Each hexadecimal digit represents four binary digits (bits), and the primary use of hexadecimal notation is a human-friendly representation of binary-coded values in computing and digital electronics. One hexadecimal digit represents a nibble, which is half of an octet (8 bits). For example, byte values can range from 0 to 255 (decimal), but may be more conveniently represented as two hexadecimal digits in the range 00 to FF. Hexadecimal is also commonly used to represent computer memory addresses.

Read more about Hexadecimal: Real Numbers, Key To Number Base Notation

### Other articles related to "hexadecimal":

... The number can be either in decimal or in

**hexadecimal**... If the input is in

**hexadecimal**, the number is preceded by an "x" ... Example The HTML code of the copyright sign U+00A9 (or copy) can be #169 (decimal input) #xa9 (

**hexadecimal**input) copy (entity name) ...

**Hexadecimal**

... = 17oct 1 ... Binary may be converted to and from

**hexadecimal**somewhat more easily ... This is because the radix of the

**hexadecimal**system (16) is a power of the radix of the binary system (2) ... of binary to represent one digit of

**hexadecimal**, as shown in the table to the right ...

**Hexadecimal**- Key To Number Base Notation

... in article Full Text Notation Abbreviation Number Base binary bin 2 octal oct 8 decimal dec 10

**hexadecimal**hex 16 ...

**Hexadecimal**

... See also

**Hexadecimal**#Converting from other bases RGB values are usually given in the 0–255 range if they are in the 0–1 range, the values are multiplied by 255 ... division ignoring any remainder) gives us the first

**hexadecimal**digit (between 0 and F, where the letters A to F represent the numbers 10 to 15 ... See

**hexadecimal**for more details) ...

**Hexadecimal**Time

...

**Hexadecimal**time is the representation of the time of day as a

**hexadecimal**number in the interval [0,1) ... The day is divided in 1016 (sixteen)

**hexadecimal**hours, each hour in 10016 (two hundred and fifty-six)

**hexadecimal**minutes and each minute in 1016 (sixteen)

**hexadecimal**...