As character names:

U+24E4 CIRCLED LATIN SMALL LETTER U 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 164, hex 0xA4, octal \244, binary 10100100
This is continuation byte 2, expecting 0 more.

U+24E4	CIRCLED LATIN SMALL LETTER U
	# <circle> 0075