As character names:

U+FA57 CJK COMPATIBILITY IDEOGRAPH-FA57 character (練)

As raw characters:

練

As a string of HTML entities:

練

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 169, hex 0xA9, octal \251, binary 10101001
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 151, hex 0x97, octal \227, binary 10010111
This is continuation byte 3, expecting 0 more.

U+FA57	CJK COMPATIBILITY IDEOGRAPH-FA57
	: 7DF4