As character names:

U+212C SCRIPT CAPITAL B character (ℬ)

As raw characters:

ℬ

As a string of HTML entities:

ℬ

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 132, hex 0x84, octal \204, binary 10000100
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 172, hex 0xAC, octal \254, binary 10101100
This is continuation byte 2, expecting 0 more.

U+212C	SCRIPT CAPITAL B
	= Bernoulli function
	# <font> 0042 latin capital letter b