As character names:

U+1D67A MATHEMATICAL MONOSPACE CAPITAL K character (𝙺)

As raw characters:

𝙺

As a string of HTML entities:

𝙺

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 157, hex 0x9D, octal \235, binary 10011101
This is continuation byte 1, expecting 2 more.

Byte number 3 is decimal 153, hex 0x99, octal \231, binary 10011001
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 186, hex 0xBA, octal \272, binary 10111010
This is continuation byte 3, expecting 0 more.

U+1D67A	MATHEMATICAL MONOSPACE CAPITAL K
	# <font> 004B latin capital letter k