0xD90
0xD90 is a hexadecimal literal commonly used in computing to denote the decimal value 3472. The prefix 0x signals that the digits that follow are base-16 rather than decimal, a convention used in many programming languages such as C, C++, Java, and JavaScript.
In hexadecimal, D, 9, and 0 correspond to 13, 9, and 0 respectively. Therefore 0xD90 equals 13
Usage and context: 0xD90 can appear as a numeric constant in source code, for example to initialize
See also: Hexadecimal notation, Hex literals, Binary and octal representations, Color hex codes in web design.