U+1E42 (Latin Capital Letter M With Dot Below) - The Unicode Character Reference
Ṃ Unicode Latin Capital Letter M With Dot Below 
|Hex Entity:||Ṃ (Ṃ)|
|Decimal Entity:||Ṃ (Ṃ)|
U+1E42 is the Unicode hex value of the character Latin Capital Letter M With Dot Below, which is categorized as "uppercase letter" in the Unicode 6.0 character table.
In addition, U+1E42 is a composite character comprising of one or more other Unicode characters modified or combined.
|Unicode Character Information|
|Character Name||LATIN CAPITAL LETTER M WITH DOT BELOW|
|General Category||Uppercase Letter [Code: Lu]|
|Canonical Combining Class||0|
|Decomposition Mapping||004D 0323|
|Unicode Character Encodings|
|Latin Capital Letter M With Dot Below HTML Entity||Ṃ (decimal entity), Ṃ (hex entity)|
|Windows Key Code||Alt 7746 or Alt +1E421|
|Programming Source Code Encodings||Python hex: u"\u1E42", Hex for C++ and Java: "\u1E42"|
|UTF-8 Hexadecimal Encoding||0xE1B982|
* If the Latin Capital Letter M With Dot Below character does not display correctly in your browser, you may not have a Unicode font on your system that supports this particular symbol.