265 (number)
| ||||
|---|---|---|---|---|
| Cardinal | two hundred sixty-five | |||
| Ordinal | 265th (two hundred sixty-fifth) | |||
| Factorization | 5 × 53 | |||
| Divisors | 1, 5, 53, 265 | |||
| Greek numeral | ΣΞΕ´ | |||
| Roman numeral | CCLXV | |||
| Binary | 1000010012 | |||
| Ternary | 1002113 | |||
| Senary | 11216 | |||
| Octal | 4118 | |||
| Duodecimal | 1A112 | |||
| Hexadecimal | 10916 | |||
265 (two hundred [and] sixty-five) is the natural number following 264 and preceding 266.
In mathematics
[edit]- 265 is an odd composite number with two prime factors.[1]
- 265's sum of its proper divisors is 59.[2]
- 265 is the number of derangements possible with 6 digits. That means that it is equivalent to !6.[3]
- The number 265 is associated with the geometric shape known as the Vesica Piscis. This is shown by having 2 circles overlap in a way that the circumference of each circle touches the center of the other. Archimedes estimated that the ratio of the height of this shape to the width was 265:153 or approximately √3.[4]
- 265 is the 22nd Padovan number which is defined by the two equations P(0)=P(1)=P(2)=1 and P(n)=P(n-2)+P(n-3) similar to the Fibonacci sequence.[5]
- 265 is the 7th number to be the hypotenuse for two separate Pythagorean Triples. The other two values would be 23 and 264 or 96 and 247.[6]
- 265 is the sum of two sets of two perfect squares. Those being 11 and 12 or 16 and 3.
In technology
[edit]- High Efficiency Video Coding also known as "H-265," is built upon H.264 and can compress 4k graphics at a quicker rate.[7]
- In 2021, scientists developed waveguide-coupled germanium photodiodes, which produced a bandwidth of 265 GHz.[8]
- The Garmin Forerunner 265 is a running watch that has both the functionality of a smartwatch and that of an exercising watch. It provides comprehensive exercising data for the user.[9]
World Records
[edit]- The record for skipping rope on one leg in one minute was set by Gbenga Ezekiel at 265 times.[10]
- On October 14, 2021, Johnson & Johnson achieved the Guinness World Record for the number of people simultaneously making heart hand gestures. There were 265 participants.[11]
- On March 5, 2022, Sony achieved the largest synchronized car dance of 265 cars in Dubai.[12]
- On May 16, 2010, Sai Manapragada received the Guinness World Record for the most languages sung in a single song which was 265.[13]
Other fields
[edit]- The calendar years 265 AD and 265 BC.
- In the French Republican calendar, The year 265 would be a year 1 cycle and be in 2057.[14]
- 265 is the number of several different highways in Canada, Japan, and the United States.
- According to the IUCN SCC Bumblebee Specialist Group, there are 265 species of bees in the bombus genus which contain the bumblebee.[15]
References
[edit]- ^ "Facts about the integer". mathworld.wolfram.com.
- ^ "Proper divisors of 265". numbermatics.com.
- ^ "Derangement sequence". mathworld.wolfram.com.
- ^ "Vescica Piscis". mathworld.wolfram.com.
- ^ "Padovan sequence". mathworld.wolfram.com.
- ^ "Pythagorean triples list" (PDF). aleph0.clarku.edu.
- ^ "What is H-265". loc.gov. 19 November 2020.
- ^ Lischke, S.; Peczek, A.; Morgan, J. S.; Sun, K.; Steckler, D.; Yamamoto, Y.; Korndörfer, F.; Mai, C.; Marschmeyer, S.; Fraschke, M.; Krüger, A.; Beling, A.; Zimmermann, L. (November 18, 2021). "Germanium photodiode 265 GHz bandwidth". Nature Photonics. 15 (12): 925–931. doi:10.1038/s41566-021-00893-w. S2CID 245746761.
- ^ Sgobba, Christa (July 31, 2023). "Garmin Forerunner 265". self.com.
- ^ Hooper, Ben (February 15, 2023). "Skipping rope world record". www.guinnessworldrecords.com.
- ^ Zhan, Echo (December 20, 2021). "265 people make heart hand gestures". guinnessworldrecords.com.
- ^ "Guinness World Record for larges synchronized car dance". guinnessworldrecords.com.
- ^ "Guinness World Record for most languages in a song". guinnessworldrecords.com.
- ^ "French Republican Calendar Guide" (PDF). broadcast.lds.org.
- ^ "Bombus species count". bumblebeespecialistgroup.org.