Code point
U+1D6BA
Glyph appearance depends on your fonts.
U+1D6BA
Lu<font> 03A3U+1D6BA MATHEMATICAL BOLD CAPITAL SIGMA is a Unicode 16.0.0 character in the Uppercase Letter category. It belongs to the Mathematical Alphanumeric Symbols block.
Choose the representation you need, then copy its value.
U+1D6BA
120506
𝚺
𝚺
F0 9D 9A BA
D835 DEBA
0001D6BA
%F0%9D%9A%BA
\U0001D6BA
\u{1D6BA}
\uD835\uDEBA
\1D6BA