As character names:

U+A874 PHAGS-PA SINGLE HEAD MARK character (꡴)

As raw characters:

꡴

As a string of HTML entities:

꡴

Decoder output:

Byte number 1 is decimal 240, hex 0xF0, octal \360, binary 11110000
This is the first byte of a 4 byte sequence.

Byte number 2 is decimal 138, hex 0x8A, octal \212, binary 10001010
This is continuation byte 1, expecting 2 more.

Byte number 3 is decimal 161, hex 0xA1, octal \241, binary 10100001
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 180, hex 0xB4, octal \264, binary 10110100
This is continuation byte 3, expecting 0 more.

U+A874	PHAGS-PA SINGLE HEAD MARK
	* Tibetan
	* marks beginning of text
	x (tibetan mark initial yig mgo mdun ma - 0F04)
	x (mongolian birga - 1800)