Dave Richeson (@divbyzero) 's Twitter Profile
Dave Richeson

@divbyzero

Mathematician. Curley Chair in Liberal Arts at Dickinson College. Author of Tales of Impossibility and Euler's Gem. Now: divbyzero.bsky.social

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calendar_today11-08-2008 17:39:51

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Dave Richeson (@divbyzero) 's Twitter Profile Photo

In an effort to get something other than politics into your feed: A Munchausen number is the sum of its digits raised to the power of that digit. 1=1¹ and 3435=3³+4⁴+3³+5⁵ are the only two examples if 0⁰ is defined as 1. If we take 0⁰=0, then 438579088 is another.

Harshal S Chhaya (@hschhaya) 's Twitter Profile Photo

(Inspired by Dave Richeson) In an effort to get something other than politics into your feed, a fun fact about ‘49’ The sum of the digits of the square of 49 (2401) is the square root of 49 (More in the image below) Src: Issue 49 of #SixSTEMTweets newsletter Link in alt text

(Inspired by <a href="/divbyzero/">Dave Richeson</a>)

In an effort to get something other than politics into your feed, a fun fact about ‘49’

The sum of the digits of the square of 49 (2401) is the square root of 49

(More in the image below)

Src: Issue 49 of #SixSTEMTweets newsletter 

Link in alt text
Dave Richeson (@divbyzero) 's Twitter Profile Photo

Here's a fun little "magic trick." Can you figure out how it works? Hint: even and odd numbers. I was thinking you could roll a die to determine how much to count each time. (I saw the trick was credited to Martin Gardner—true? Source?) youtube.com/watch?v=DaWcL3…