As character names:

U+1EA0 LATIN CAPITAL LETTER A WITH DOT BELOW character (Ạ)

As raw characters:

Ạ

As a string of HTML entities:

Ạ

Decoder output:

Byte number 1 is decimal 225, hex 0xE1, octal \341, binary 11100001
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 186, hex 0xBA, octal \272, binary 10111010
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 160, hex 0xA0, octal \240, binary 10100000
This is continuation byte 2, expecting 0 more.

U+1EA0	LATIN CAPITAL LETTER A WITH DOT BELOW
	: 0041 0323