Step 1: Determine the UTF-8 encoding bit layout
The character ⑱ has the Unicode code point U+2471. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800to0xffff.
Therefore we know that the UTF-8 encoding will be done over 16 bits within the final 24 bits and that it will have the format:1110xxxx 10xxxxxx 10xxxxxx
Where thexare the payload bits.UTF-8 Encoding bit layout by codepoint range Codepoint Range Bytes Bit pattern Payload length U+0000 - U+007F 1 0xxxxxxx 7 bits U+0080 - U+07FF 2 110xxxxx 10xxxxxx 11 bits U+0800 - U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx 16 bits U+10000 - U+10FFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 21 bits Step 2: Obtain the payload bits:
Convert the hexadecimal code point U+2471 to binary:
00100100 01110001. Those are the payload bits.Step 3: Fill in the bits to match the bit pattern:
Obtain the final bytes by arranging the paylod bits to match the bit layout:
11100010 10010001 10110001
CIRCLED NUMBER EIGHTEEN·U+2471
⑱
Character Information
Code Point
U+2471
HEX
2471
Unicode Plane
Basic Multilingual Plane
Category
Other Number
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 91 B1 | 11100010 10010001 10110001 |
| UTF16 (big Endian) | 24 71 | 00100100 01110001 |
| UTF16 (little Endian) | 71 24 | 01110001 00100100 |
| UTF32 (big Endian) | 00 00 24 71 | 00000000 00000000 00100100 01110001 |
| UTF32 (little Endian) | 71 24 00 00 | 01110001 00100100 00000000 00000000 |
HTML Entity
⑱
URI Encoded
%E2%91%B1
Description
U+2471 is a typographical character representing the circled number eighteen (₁₈) in Unicode, which plays a significant role in digital text for mathematical equations, programming languages, and technical documentation. The symbol is commonly employed to differentiate between regular numbers and variables or constants within computer code, making it easier for programmers to understand and interpret the data. In certain mathematical contexts, the circled number eighteen may denote a specific set or group of items, emphasizing its distinct identity from other numeric values. Although U+2471 does not hold any particular cultural or linguistic significance, it remains an essential tool for precise and accurate digital communication in various disciplines.
How to type the ⑱ symbol on Windows
Hold Alt and type 9329 on the numpad. Or use Character Map.