As character names:

U+23F7 BLACK MEDIUM DOWN-POINTING TRIANGLE 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 143, hex 0x8F, octal \217, binary 10001111
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 183, hex 0xB7, octal \267, binary 10110111
This is continuation byte 2, expecting 0 more.

U+23F7	BLACK MEDIUM DOWN-POINTING TRIANGLE
	= decrease
	* preferred to 25BC black down-pointing triangle
	x (black medium down-pointing triangle centred - 2BC6)
	x (black down-pointing isosceles right triangle - 1F783)