Vai Digit Four
HTML Entity Browser Test:

U+A624 is the Unicode hex value of the character Vai Digit Four, which is categorized as "decimal digit number" in the Unicode 6.0 character table.

Unicode Character Information
Unicode Hex U+A624
Character Name VAI DIGIT FOUR
General Category Decimal Digit Number [Code: Nd]
Canonical Combining Class 0
Bidirectional Category L
Numeric Value 4
Mirrored N
Unicode Character Encodings
Vai Digit Four HTML Entity ꘤ (decimal entity), ꘤ (hex entity)
Windows Key Code Alt 42532 or Alt +A6241
Programming Source Code Encodings Python hex: u"\uA624", Hex for C++ and Java: "\uA624"
UTF-8 Hexadecimal Encoding 0xEA98A4
1 To type a Unicode symbol in Windows, hold down the ALT key and enter the decimal or hexadecimal code provided using the numeric keypad. The decimal alt code (Alt 42532) will only work on computers with support for this Unicode character in the active code page. The hexadecimal alt code (Alt +A624) will work for all Unicode characters provided Hex input from the numeric keypad is enabled.
* If the Vai Digit Four character does not display correctly in your browser, you may not have a Unicode font on your system that supports this particular symbol.