As character names:

U+00E4 LATIN SMALL LETTER A WITH DIAERESIS character (ä)

As raw characters:

ä

As a string of HTML entities:

ä

Decoder output:

Byte number 1 is decimal 195, hex 0xC3, octal \303, binary 11000011
This is the first byte of a 2 byte sequence.

Byte number 2 is decimal 164, hex 0xA4, octal \244, binary 10100100
This is continuation byte 1, expecting 0 more.

U+00E4	LATIN SMALL LETTER A WITH DIAERESIS
	: 0061 0308