As character names:

U+10129 AEGEAN NUMBER EIGHT THOUSAND character (𐄩)

As raw characters:

𐄩

As a string of HTML entities:

𐄩

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 144, hex 0x90, octal \220, binary 10010000
This is continuation byte 1, expecting 2 more.

Byte number 3 is decimal 132, hex 0x84, octal \204, binary 10000100
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 169, hex 0xA9, octal \251, binary 10101001
This is continuation byte 3, expecting 0 more.

U+10129	AEGEAN NUMBER EIGHT THOUSAND