As character names:

U+AB48 LATIN SMALL LETTER DOUBLE R character (ꭈ)

As raw characters:

ꭈ

As a string of HTML entities:

ꭈ

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 173, hex 0xAD, octal \255, binary 10101101
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 136, hex 0x88, octal \210, binary 10001000
This is continuation byte 3, expecting 0 more.

U+AB48	LATIN SMALL LETTER DOUBLE R