As character names:

U+A4FF LISU PUNCTUATION FULL STOP 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 147, hex 0x93, octal \223, binary 10010011
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 191, hex 0xBF, octal \277, binary 10111111
This is continuation byte 3, expecting 0 more.

U+A4FF	LISU PUNCTUATION FULL STOP