0x1381
0x1381 is a hexadecimal number. In decimal representation, it is equal to 5009. The prefix "0x" is a common convention used in computer programming to indicate that the number that follows is written in base 16. Hexadecimal numbers are often used in computing because they offer a more human-readable way to represent binary data than long strings of 0s and 1s. Each hexadecimal digit can represent four binary digits (bits).
The hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C,