As character names:

U+F921 CJK COMPATIBILITY IDEOGRAPH-F921 character (嵐)

As raw characters:

嵐

As a string of HTML entities:

嵐

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 143, hex 0x8F, octal \217, binary 10001111
This is continuation byte 1, expecting 2 more.

Byte number 3 is decimal 164, hex 0xA4, octal \244, binary 10100100
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 161, hex 0xA1, octal \241, binary 10100001
This is continuation byte 3, expecting 0 more.

U+F921	CJK COMPATIBILITY IDEOGRAPH-F921
	: 5D50