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U+2140

Double Struck N Ary Summation

Letterlike Symbols Common script Math symbol Since Unicode 3.2

← ℿ U+213F
Double Struck Capital Pi U+2141
Turned Sans Serif Capital G ⅁ →

Don't confuse it with

These look almost identical but are different characters, and won't match in search or code.

ƩLatin Capital EshU+01A9
ΣGreek Capital SigmaU+03A3
∑N-ary summationU+2211
ⵉTifinagh YiU+2D49
𝚺Mathematical Bold Capital SigmaU+1D6BA
𝛴Mathematical Italic Capital SigmaU+1D6F4
𝜮Mathematical Bold Italic Capital SigmaU+1D72E
𝝨Mathematical Sans Serif Bold Capital SigmaU+1D768
𝞢Mathematical Sans Serif Bold Italic Capital SigmaU+1D7A2

Technical details

UTF-8E2 85 80
UTF-162140
Decimal8,512
Decomposes tofont: + U+2211

All facts

BlockLetterlike Symbols
ScriptCommon
CategorySymbol, math (Sm)
Decompositionfont: U+2211
First assignedUnicode 3.2

Fonts that include this character

49 of 137,179 fonts include this character.

Showing all 49 fonts. Counts and order come from the snapshot of 21 October 2026; each tile is one font (one style of a family), deduplicated so byte-identical files appear once.