As character names:

U+29E9 DOWN-POINTING TRIANGLE WITH RIGHT HALF BLACK 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 169, hex 0xA9, octal \251, binary 10101001
This is continuation byte 2, expecting 0 more.

U+29E9	DOWN-POINTING TRIANGLE WITH RIGHT HALF BLACK
	x (up-pointing triangle with right half black - 25EE)