As character names:

U+1F225 SQUARED CJK UNIFIED IDEOGRAPH-5439 character (🈥)

As raw characters:

🈥

As a string of HTML entities:

🈥

Decoder output:

Byte number 1 is decimal 240, hex 0xF0, octal \360, binary 11110000
This is the first byte of a 4 byte sequence.

Byte number 2 is decimal 159, hex 0x9F, octal \237, binary 10011111
This is continuation byte 1, expecting 2 more.

Byte number 3 is decimal 136, hex 0x88, octal \210, binary 10001000
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 165, hex 0xA5, octal \245, binary 10100101
This is continuation byte 3, expecting 0 more.

U+1F225	SQUARED CJK UNIFIED IDEOGRAPH-5439
	= dubbed version
	# <square> 5439