278 279 280
Cardinaltwo hundred seventy-nine
Ordinal279th
(two hundred seventy-ninth)
Factorization32 × 31
Divisors1, 3, 9, 31, 93, 279
Greek numeralΣΟΘ´
Roman numeralCCLXXIX
Binary1000101112
Ternary1011003
Senary11436
Octal4278
Duodecimal1B312
Hexadecimal11716

279 (two hundred [and] seventy-nine) is the natural number following 278 and preceding 280.

In mathematics

  • 279 is an odd composite number with two prime factors.[1]
  • Waring’s Conjecture is g(n)=2n+⌊(3/2)n⌋-2. When 8 is plugged in for n, the result is 279. That means that any positive integer can be formed with at most 279 numbers to the 8th power.[2]
  • 279 is the smallest number whose product of digits is 7 times the sum of its digits.
  • 279 can be written as the sum of 4 nonzero perfect squares.[3]

In technology

  • The area code of 279 was added to the Sacramento metropolitan area in California. It was added to the code of 916 in that area.[4]
  • Tyrosine Kinase 2 Inhibitor or TAK-279 Inhibitor is a mediator of IL12 and IL23. TAK-279 is involved with certain inflammatory diseases like lupus and arthritis. TAK-279 inhibition is a possible way to treat these diseases.[5]

World Records

Other fields

References

  1. "Facts about the integer". mathworld.wolfram.com.
  2. "Waring's Problem and Conjecture". mathworld.wolfram.com.
  3. Sloane, N. J. A. (ed.). "Sequence A004215 (Numbers that are the sum of 4 but no fewer nonzero squares)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  4. "279 area code". www.allareacodes.com.
  5. Leit, Silvana; Greenwood, Jeremy; Carriero, Samantha; Mondal, Sayan; Abel, Robert; Ashwell, Mark; Blanchette, Heather; Boyles, Nicholas A.; Cartwright, Mark; Collis, Alan; Feng, Shulu; Ghanakota, Phani; Harriman, Geraldine C.; Hosagrahara, Vinayak; Kaila, Neelu; Kapeller, Rosanna; Rafi, Salma B.; Romero, Donna L.; Tarantino, Paul M.; Timaniya, Jignesh; Toms, Angela V.; Wester, Ronald T.; Westlin, William; Srivastava, Bhaskar; Miao, Wenyan; Tummino, Peter; McElwee, Joshua J.; Edmondson, Scott D.; Masse, Craig E. (July 10, 2023). "Tyrosine Kinase 2 Inhibitor TAK-279". Journal of Medicinal Chemistry. 66 (15): 10473–10496. doi:10.1021/acs.jmedchem.3c00600. PMID 37427891.
  6. "279 person french horn ensemble". www.guinnessworldrecords.com.
  7. "279 people breaking roof tiles". www.guinnessworldrecords.com.
  8. "2.79 seconds for five three point shots". www.guinnessworldrecords.com.
  9. "2.79 m cake pyramid". www.guinnessworldrecords.com.
  10. "2.79 percent twin rate in Benin by natural birth". www.guinnessworldrecords.com.]
  11. "French Republican Calendar Guide" (PDF). broadcast.lds.org.
  12. "279 Thule information". www.spacereference.org.
  13. "Greenland ice levels". climate.nasa.gov.
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