As character names:

U+AB4B LATIN SMALL LETTER SCRIPT R character (ꭋ)

As raw characters:

ꭋ

As a string of HTML entities:

ꭋ

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 139, hex 0x8B, octal \213, binary 10001011
This is continuation byte 3, expecting 0 more.

U+AB4B	LATIN SMALL LETTER SCRIPT R
	x (mathematical script small r - 1D4C7)