As character names:

U+2485 PARENTHESIZED NUMBER EIGHTEEN character (⒅)

As raw characters:

⒅

As a string of HTML entities:

⒅

Decoder output:

Byte number 1 is decimal 226, hex 0xE2, octal \342, binary 11100010
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 146, hex 0x92, octal \222, binary 10010010
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 133, hex 0x85, octal \205, binary 10000101
This is continuation byte 2, expecting 0 more.

U+2485	PARENTHESIZED NUMBER EIGHTEEN
	# 0028 0031 0038 0029