284 (number)

Short description: Natural number

| <- 283  | 284 |  285 ->

|
|

← 200 210 220 230 240 250 260 270 280 290 →

List of numbers — Integers

← 0 100 200 300 400 500 600 700 800 900 →

Cardinal| two hundred eighty-four
Ordinal| 284th
(two hundred eighty-fourth)
Factorization| 22 × 71
Divisors| 1, 2, 4, 71, 142, 284
Greek numeral| ΣΠΔ´
Roman numeral| CCLXXXIV
Binary| 1000111002
Ternary| 1011123
Quaternary| 101304
Quinary| 21145
Senary| 11526
Octal| 4348
Duodecimal| 1B812
Hexadecimal| 11C16
Vigesimal| E420
Base 36| 7W36

284 is the natural number following 283 and preceding 285.

## Contents

* 1 In mathematics
* 2 World Records
* 3 Other fields
* 4 References

## In mathematics

* 284 is an even composite number with 2 prime factors.[1]
* 284 is in the first pair of amicable numbers with 220. That means that the sum of the proper divisors are the same between the two numbers.[2]
* 284 can be written as a sum of exactly 4 nonzero perfect squares.[3]
* 284 is a nontotient number which are numbers where phi(x) equaling that number has no solution.[4]
* 284 is a number that is the nth prime plus n. It is the 51st prime number (233) plus 51.[5]

## World Records

* On July 3, 2010, Eduaedo Nakagawa achieved the Guinness World Record as the most prolific holder of records on Picross. He has the record for 284 of the 345 levels.[6]
* On June 21, 2019, the largest rhythmic yoga lesson was completed in Hefei, China. It had 284 attendees.[7]
* On October 25, 2005, Soulcalibur III was released on the PlayStation 2 with the most weapons in any video game. It had 284 weapons.[8]
* On October 17, 2022, the students of Tabla Talim Sanstha in Ahmedabad, India completed the longest hand-drumming relay with 284 people.[9]

## Other fields

* The calendar years 284 AD and 284 BC.
* 283 is the number of several highways in Japan and the United States .
* 284 Amalia is an asteroid in the asteroid belt. It was discovered by Auguste Charlois in Nice, France and is a Ch-type asteroid.[10]

## References

1. ↑ "Composite numbers". https://mathworld.wolfram.com/CompositeNumber.html.
2. ↑ "Amicable numbers". https://mathworld.wolfram.com/AmicablePair.html.
3. ↑ Sloane, N. J. A., ed. "Sequence A004215 (Numbers that are the sum of 4 but no fewer nonzero squares)". OEIS Foundation. https://oeis.org/A004215.
4. ↑ Sloane, N. J. A., ed. "Sequence A005277". OEIS Foundation. https://oeis.org/A005277.
5. ↑ Sloane, N. J. A., ed. "Sequence A014688". OEIS Foundation. https://oeis.org/A014688.
6. ↑ "284 world records in Picross". https://www.guinnessworldrecords.com/world-records/most-prolific-record-holder-on-picross-(nintendo-2007).
7. ↑ "284 people in a rhythmic yoga lesson". https://www.guinnessworldrecords.com/world-records/541442-largest-rhythmic-yoga-lesson.
8. ↑ "283 weapons in a fighting video game". https://www.guinnessworldrecords.com/world-records/88283-most-weapons-in-a-fighting-videogame.
9. ↑ "284 people attending a hand-drumming relay". https://www.guinnessworldrecords.com/world-records/707212-longest-hand-drumming-relay.
10. ↑ "284 Amalia asteroid information". 27 March 2019. https://www.universeguide.com/asteroid/933/amalia.

This article needs additional or more specific categories. Please help out by adding categories to it so that it can be listed with similar articles. (October 2023)

|

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/284 (number). Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=284_(number)&oldid=262765"