Yes: Five has four letters. Nine has four letters.

There are no more.

If you meant to ask if there are any more whole numbers with the same number of letters in the name as the number, then the answer is no. It is fairly simple to check - you only have to look at the numbers 0-30 before it becomes clear no other number will fit this pattern.

If you went into fractions like 20.12325 then there will be many numbers where all the letters added would get close but the fraction itself would mean you couldn't quite reach the exact number as you can't have fractions of letters.

If you included negative numbers then "minus eleven" has 11 letters. Minus thirteen has 13 letters. It seems to again break down once you go beyond 13, and its dodgy to include negative numbers as you can't have negative letters.

So, no.

I don't know in English, but in Spanish the word for five, Cinco, has five letters.

two to power of four = 16

Yeah. Fivee. Siiiix. Seeveen. Eeeeight. Niiiiiiine.

-9 (minus nine) kind of works if we’re getting desperate.

The number one hundred million sixty six thousand five hundred seventy three has exactly 100,066,537 letters.

Flive has flive letters.

How about strokes? 一，二，三 😆

The fifth letter of "fifth" completes the word.

Remind me of the classic sequence where every number leads to 4.

10 -> 3 -> 5 -> 4

1024 -> 21 -> 9 -> 4

To

Three

No, but cinco has 5, lol.

It's the only one in English unless you allow things like "The absolute value of -20".

sephene

No. As a matter of fact, this is a neat party trick I used to use.

Start with literally any number, and count the letters to match it. You will always end up at four because it's the only English word and Arabic numeral represented with equivalent letters.

The answer to your question is zero yet at this he same time zero is not an answer to your question.

Stand up maths did a video on this 8 years ago. https://youtu.be/LYKn0yUTIU4

I think the answer is no. It would only be possible with very small numbers. Even by the time you've reached 100, it's not going to happen again.

ITT: lots of people who misunderstood a clever but badly-phrased question.

Nien.

Ten and a hal^f^

1

All of them except one, two, six and ten have 4 letters. Most have more than that, but they also have 4. 😁

Fri

1

~~I hate sharing YouTube links, but Matt Parker has a video on this ~~

(Can go all in on Open software with Linux, Firefox and Lemmy, but atill locked into YouTube)

I was too late