As character names:

U+266F MUSIC SHARP SIGN character (♯)

As raw characters:

♯

As a string of HTML entities:

♯

Decoder output:

Byte number 1 is decimal 226, hex 0xE2, octal \342, binary 11100010
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 153, hex 0x99, octal \231, binary 10011001
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 175, hex 0xAF, octal \257, binary 10101111
This is continuation byte 2, expecting 0 more.

U+266F	MUSIC SHARP SIGN
	= z notation infix bag count
	x (number sign - 0023)