As character names:

U+A859 PHAGS-PA LETTER LA character (ꡙ)

As raw characters:

ꡙ

As a string of HTML entities:

ꡙ

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 153, hex 0x99, octal \231, binary 10011001
This is continuation byte 3, expecting 0 more.

U+A859	PHAGS-PA LETTER LA
	x (tibetan letter la - 0F63)