As character names:

U+31F8 KATAKANA LETTER SMALL HE character (ㇸ)

As raw characters:

ㇸ

As a string of HTML entities:

ㇸ

Decoder output:

Byte number 1 is decimal 227, hex 0xE3, octal \343, binary 11100011
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 135, hex 0x87, octal \207, binary 10000111
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 184, hex 0xB8, octal \270, binary 10111000
This is continuation byte 2, expecting 0 more.

U+31F8	KATAKANA LETTER SMALL HE