As character names:

U+24C7 CIRCLED LATIN CAPITAL LETTER R 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 147, hex 0x93, octal \223, binary 10010011
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 135, hex 0x87, octal \207, binary 10000111
This is continuation byte 2, expecting 0 more.

U+24C7	CIRCLED LATIN CAPITAL LETTER R
	x (registered sign - 00AE)
	# <circle> 0052