Step 1: Determine the UTF-8 encoding bit layout
The character ① has the Unicode code point U+2460. 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+2460 to binary:
00100100 01100000. 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 10100000
CIRCLED DIGIT ONE·U+2460
①
Character Information
Code Point
U+2460
HEX
2460
Unicode Plane
Basic Multilingual Plane
Category
Other Number
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 91 A0 | 11100010 10010001 10100000 |
| UTF16 (big Endian) | 24 60 | 00100100 01100000 |
| UTF16 (little Endian) | 60 24 | 01100000 00100100 |
| UTF32 (big Endian) | 00 00 24 60 | 00000000 00000000 00100100 01100000 |
| UTF32 (little Endian) | 60 24 00 00 | 01100000 00100100 00000000 00000000 |
HTML Entity
①
URI Encoded
%E2%91%A0
Description
U+2460, the Circled Digit One character, is a symbol commonly used in digital text for representing the number one within a circular boundary. This typographical element is often employed in applications such as mathematics, computer science, and engineering to visually distinguish a particular instance of the digit from others in the context. It serves an important role in conveying clarity and reducing ambiguity, particularly when the digit is being used within a collection or series. Despite its limited use compared to other numeral characters, the Circled Digit One holds a unique position as a valuable tool for enhancing readability and precision in specialized fields.
How to type the ① symbol on Windows
Hold Alt and type 9312 on the numpad. Or use Character Map.