As character names:

U+29C7 SQUARED SMALL CIRCLE 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 167, hex 0xA7, octal \247, binary 10100111
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 135, hex 0x87, octal \207, binary 10000111
This is continuation byte 2, expecting 0 more.

U+29C7	SQUARED SMALL CIRCLE
	x (apl functional symbol quad jot - 233B)