Double-struck n-ary summation

⅀ is the Unicode character “DOUBLE-STRUCK N-ARY SUMMATION” (U+2140). It belongs to the Letterlike Symbols block and was added in Unicode 3.2. Click it to copy, or use the codes below.

⅀ codes

UnicodeCode point U+2140
HTML codeDecimal, works in any HTML page ⅀
HTML hexHexadecimal HTML code ⅀
CSSFor the CSS content property \2140
JavaScriptEscape in JavaScript strings \u2140
PythonEscape in Python strings \u2140
URL encodedPercent-encoded UTF-8 %E2%85%80
UTF-8Bytes in UTF-8 E2 85 80
UTF-16Code units in UTF-16 2140

How to type ⅀

Copy and paste

Click to copy it, then paste with Ctrl + V (⌘ + V on a Mac) or a long press on phones.

Windows

Press Win + . to open the emoji and symbol panel, then search for “double-struck n-ary summation”.

In Microsoft Word, type 2140 and press Alt + X.

Mac

Press Control + ⌘ + Space to open the Character Viewer, then search for “double-struck n-ary summation”.

iPhone and Android

Copy it here and paste it. To type it again later, save it as a text replacement (iPhone: Settings › General › Keyboard › Text Replacement; Gboard: Settings › Dictionary › Personal dictionary).

HTML and CSS

Unicode U+2140. Every format is on the double-struck n-ary summation page.

About ⅀

Unicode name
DOUBLE-STRUCK N-ARY SUMMATION
Code point
U+2140 (8512)
Block
Letterlike Symbols
Category
Math Symbol
Unicode version
3.2