As character names:

U+1E40 LATIN CAPITAL LETTER M WITH DOT ABOVE character (Ṁ)

As raw characters:

Ṁ

As a string of HTML entities:

Ṁ

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 185, hex 0xB9, octal \271, binary 10111001
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 128, hex 0x80, octal \200, binary 10000000
This is continuation byte 2, expecting 0 more.

U+1E40	LATIN CAPITAL LETTER M WITH DOT ABOVE
	: 004D 0307