As character names:

U+A7B3 LATIN CAPITAL LETTER CHI character (Ꭓ)

As raw characters:

Ꭓ

As a string of HTML entities:

Ꭓ

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 158, hex 0x9E, octal \236, binary 10011110
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 179, hex 0xB3, octal \263, binary 10110011
This is continuation byte 3, expecting 0 more.

U+A7B3	LATIN CAPITAL LETTER CHI
	* lowercase is AB53
	x (greek capital letter chi - 03A7)