0x31
0x31 is a hexadecimal literal commonly encountered in computing and programming. When interpreted as a base-16 number, 0x31 equals 49 in decimal. The two hex digits 3 and 1 contribute to the value as 3×16 + 1 = 49.
In ASCII and Unicode, the code point U+0031 represents the character '1', and the byte value 0x31
0x31 can appear in a variety of practical contexts. As a two-digit hex value, it may be