EMPTY SET WITH OVERBAR U+29B1

BlockMiscellaneous Mathematical Symbols-B
CategoryMath Symbol
UTF-80xE2 0xA6 0xB1
UTF-160xFF 0xFE 0xB1 0x29
UTF-320xFF 0xFE 0x0 0x0 0xB1 0x29 0x0 0x0
HTML⦱
Pythonu"\u29B1"