As character names:

U+A86C PHAGS-PA LETTER NNA character (ꡬ)

As raw characters:

ꡬ

As a string of HTML entities:

ꡬ

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 172, hex 0xAC, octal \254, binary 10101100
This is continuation byte 3, expecting 0 more.

U+A86C	PHAGS-PA LETTER NNA
	* Sanskrit
	x (tibetan letter nna - 0F4E)