𝔹

U+1D539 MATHEMATICAL DOUBLE-STRUCK CAPITAL B

Mathematical Alphanumeric Symbols · Uppercase letter

NameMATHEMATICAL DOUBLE-STRUCK CAPITAL B
Code pointU+1D539
Decimal120121
BlockMathematical Alphanumeric Symbols
CategoryUppercase letter (Lu)
UTF-8F0 9D 94 B9
UTF-16D835 DD39
UTF-320001D539
HTML𝔹 𝔹
CSS\1D539
JavaScript\uD835\uDD39
Python\U0001d539
URL-encoded%F0%9D%94%B9
Decomposition<font> 0042

Frequently asked questions

What is the character U+1D539?

U+1D539 𝔹 is officially named MATHEMATICAL DOUBLE-STRUCK CAPITAL B. It belongs to the Mathematical Alphanumeric Symbols block and the category Uppercase letter.

How do I type 𝔹?

Windows (Word, WordPad): type 1D539, then press Alt+X. Linux (GTK/IBus): Ctrl+Shift+U 1d539, then Space. macOS: enable the “Unicode Hex Input” keyboard, hold Option and type 1D539. Or simply copy it from this page.

How do I write 𝔹 in HTML?

As a numeric character reference &#120121; (decimal) or &#x1D539; (hexadecimal). In UTF-8 documents you can also insert the character directly.

How is 𝔹 encoded in UTF-8?

In UTF-8 the character takes 4 bytes: F0 9D 94 B9. In UTF-16: D835 DD39.

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