ASCII 73
ASCII 73 is Capital letter I, written I.
Every representation
| Character | I |
| Name | Capital letter I |
| Decimal | 73 |
| Hexadecimal | 0x49 |
| Octal | 0111 |
| Binary | 01001001 |
| HTML entity | I |
| Escape sequence | \x49 |
| Unicode | U+0049 |
| Group | Letter |
What it is for
The capital letter I. Capitals run from 65 to 90 and their lowercase counterparts from 97 to 122, exactly 32 apart, so changing case is a single bit flip.
Where the number comes from
The alphabet was placed so that capitals start at 65 and lowercase at 97 — exactly 32 apart, a single bit. Changing case is therefore c ^ 32, and this was a deliberate design decision rather than a coincidence.
Frequently asked questions
What is ASCII 73?
Capital letter I, the character I. In hexadecimal it is 0x49, in octal 0111, and in binary 01001001.
How do I type ASCII 73?
Type I directly. In a string literal it can also be written \\x49, and in HTML as I.
Is ASCII 73 printable?
Yes. Codes 32 to 126 are the printable range, which is every character ASCII can actually display.
Nearby codes
- ASCII 66 — B
- ASCII 67 — C
- ASCII 68 — D
- ASCII 69 — E
- ASCII 70 — F
- ASCII 71 — G
- ASCII 72 — H
- ASCII 74 — J
- ASCII 75 — K
- ASCII 76 — L
- ASCII 77 — M
- ASCII 78 — N
- ASCII 79 — O
- ASCII 80 — P
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