As character names:

U+2218 RING OPERATOR character (∘)

As raw characters:

∘

As a string of HTML entities:

∘

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 136, hex 0x88, octal \210, binary 10001000
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 152, hex 0x98, octal \230, binary 10011000
This is continuation byte 2, expecting 0 more.

U+2218	RING OPERATOR
	= composite function
	= APL jot
	x (degree sign - 00B0)
	x (devanagari abbreviation sign - 0970)
	x (white bullet - 25E6)
	x (avestan abbreviation mark - 10B39)