As character names:

U+A8FC DEVANAGARI SIGN SIDDHAM 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 138, hex 0x8A, octal \212, binary 10001010
This is continuation byte 1, expecting 2 more.

Byte number 3 is decimal 163, hex 0xA3, octal \243, binary 10100011
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 188, hex 0xBC, octal \274, binary 10111100
This is continuation byte 3, expecting 0 more.

U+A8FC	DEVANAGARI SIGN SIDDHAM
	= siddhirastu
	* used at the beginning of texts as an invocation
	x (telugu sign siddham - 0C77)
	x (kannada sign siddham - 0C84)
	x (tibetan mark initial yig mgo mdun ma - 0F04)
	x (mongolian birga - 1800)
	x (sharada sign siddham - 111DB)