0x89
0x89 is a hexadecimal numeric literal commonly used in programming to denote the integer value 137. In decimal form it equals 137, and in binary it is 10001001. As a single byte value, 0x89 appears in data streams and file formats that use hexadecimal notation.
In character encodings, 0x89 has different interpretations. It does not correspond to a printable ASCII character,
A notable use of 0x89 is as the first byte of the PNG image file signature. The
In programming practice, 0x89 is used wherever hexadecimal literals express an 8-bit value. It can serve as