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293 (number)

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← 292 293 294 →
Cardinaltwo hundred ninety-three
Ordinal293rd
(two hundred ninety-third)
Factorizationprime
Divisors1, 293
Greek numeralΣϞΓ´
Roman numeralCCXCIII
Binary1001001012
Ternary1012123
Senary12056
Octal4458
Duodecimal20512
Hexadecimal12516

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

  • There is no area code in the United States with 293. There is an area code for +46 293 in Tierp, Sweden. The +46 part locates the code in Sweden and the 293 part locates it as Tierp.[5]
  • 293T is a cell line in humans that can assist in gene expression or DNA replication. It is has been tested on its ability to use certain viruses such as adenoviruses and other mammalian viruses.[6]
  • The Omni-293 is a type of omni-directional antenna that includes 3.5 GHz of 5G bands. It is designed to be used in both rural and urban locations.<ref"Omni-293 antenna information". poynting.tech.</ref>

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. ^ {Cite web|url=https://maa.org/frank-morgans-math-chat-293-ways-to-make-change-for-a-dollar%7Ctitle=Number of ways to make change for a dollar|website=maa.org}}
  5. ^ "Sweden area code +46 293". en.codigosinternacionales.com.
  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.

References