Battle of Chustenahlah

293 is the natural number following 292 and preceding 294.

In mathematics

  • 293 is an odd prime number with one prime factor, being itself.[1]
  • 293's sum of its proper divisors is 1.[2]
  • 293 is equivalent to the sum of the first three tetradic primes. Tetradic numbers are numbers that are the same if written backwards, flipped upside-down, or mirrored upside-down and tetradic primes are tetradic numbers that are also prime. It is the sum of 11 + 101 + 181.[3]
  • 293 can be written as the sum of perfect cubes. It is 2³+2³+3³+5³+5³
  • The total number of ways to make change for a dollar in US minted coins including the half-dollar and the dollar coin.[4]

In technology

World Records

  • In 1995, the Bagger 293 was developed by Takraf and was the heaviest machine that could move by itself. It weighs in a 31.3 million lbs.[7]
  • On December 31, 2012, it was reported that in 2011, the United States was told to have the highest average watch time of TV per day at a 293 minutes.[8]
  • On April 23, 2019, Jules and You in the Netherlands organized an event where 293 participants were fire breathing simultaneously.[9]
  • On August 23, 2015, the Purple House Cancer Support in Ireland received the Guinness World Record for the greatest number of people dressed as sumo wrestlers at 293 people.[10]
  • On May 15, 2018, Alberto Pires in Portugal, at the Lisbon Bar Show, hosted the largest port tasting event with a total of 293 people.[11]

Other fields

References

  1. ^ "Prime number information". mathworld.wolfram.com.
  2. ^ "Proper divisors information". mathworld.wolfram.com.
  3. ^ "Tetradic numbers and tetradic primes". mathworld.wolfram.com.
  4. ^ "Number of ways to make change for a dollar". maa.org.
  5. ^ "Sweden area code +46 293". en.codigosinternacionales.com. 14 November 2021.
  6. ^ "293t cell line information". tecfinder.stanford.edu.
  7. ^ "Bagger 293". www.guinnessworldrecords.com.
  8. ^ "Highest rate of tv viewing". www.guinnessworldrecords.com.
  9. ^ "293 people fire breathing". www.guinnessworldrecords.com.
  10. ^ "293 people dressed as sumo wrestlers". www.guinnessworldrecords.com.
  11. ^ "293 people at port tasting event". www.guinnessworldrecords.com.
  12. ^ "French Republican Calendar Guide" (PDF). broadcast.lds.org.
  13. ^ "About the 293rd infantry division (in Russian)". pamyat-naroda.ru.