As character names:

U+2351 APL FUNCTIONAL SYMBOL UP TACK OVERBAR 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 141, hex 0x8D, octal \215, binary 10001101
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 145, hex 0x91, octal \221, binary 10010001
This is continuation byte 2, expecting 0 more.

U+2351	APL FUNCTIONAL SYMBOL UP TACK OVERBAR
	= down tack overbar
	x (down tack - 22A4)
	x (postal mark - 3012)