509

509 - natural number. Article “509” in Japanese Wikipedia has 2.6 points for quality (as of July 1, 2026). The article contains 0 references and 3 sections.

This article has the best quality in Swedish Wikipedia. However, this article is the most popular in Japanese version.

Since the creation of article “509”, its content was written by 10 registered users of Japanese Wikipedia and edited by 60 registered Wikipedia users in all languages.

The article is cited 26 times in Japanese Wikipedia and cited 5613 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Japanese): #24596 in November 2015
• Global: #226996 in July 2025

The highest popularity rank from 2008:

• Local (Japanese): #450939 in January 2016
• Global: #2030181 in February 2021

There are 11 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Swedish (sv) 509 (tal)		25.578
2	Uzbek (uz) 509 (son)		25.2286
3	Korean (ko) 509		13.6031
4	Czech (cs) 509 (číslo)		5.0919
5	Italian (it) 509 (numero)		4.6715
6	Japanese (ja) 509		2.5987
7	Vietnamese (vi) 509 (số)		2.0928
8	French (fr) 509 (nombre)		1.7389
9	Urdu (ur) 509 (عدد)		1.6252
10	Hungarian (hu) 509 (szám)		1.4021

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The following table shows the most popular language versions of the article.

The most popular language versions of the article "509" in all the time

#	Language	Popularity award	Relative popularity
1	Japanese (ja) 509		11 540
2	Korean (ko) 509		5 982
3	Italian (it) 509 (numero)		4 819
4	French (fr) 509 (nombre)		2 652
5	Hungarian (hu) 509 (szám)		1 727
6	Vietnamese (vi) 509 (số)		1 318
7	Czech (cs) 509 (číslo)		856
8	Malay (ms) 509 (nombor)		545
9	Urdu (ur) 509 (عدد)		460
10	Swedish (sv) 509 (tal)		422

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "509" in June 2026

#	Language	Popularity award	Relative popularity
1	Japanese (ja) 509		42
2	Korean (ko) 509		19
3	Italian (it) 509 (numero)		12
4	Czech (cs) 509 (číslo)		10
5	Vietnamese (vi) 509 (số)		9
6	French (fr) 509 (nombre)		8
7	Hungarian (hu) 509 (szám)		8
8	Swedish (sv) 509 (tal)		5
9	Urdu (ur) 509 (عدد)		3
10	Malay (ms) 509 (nombor)		2

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "509" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	French (fr) 509 (nombre)		16
2	Japanese (ja) 509		10
3	Italian (it) 509 (numero)		8
4	Czech (cs) 509 (číslo)		5
5	Korean (ko) 509		4
6	Vietnamese (vi) 509 (số)		4
7	Hungarian (hu) 509 (szám)		3
8	Malay (ms) 509 (nombor)		3
9	Uzbek (uz) 509 (son)		3
10	Swedish (sv) 509 (tal)		2

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The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "509" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Czech (cs) 509 (číslo)		0
2	French (fr) 509 (nombre)		0
3	Hungarian (hu) 509 (szám)		0
4	Italian (it) 509 (numero)		0
5	Japanese (ja) 509		0
6	Korean (ko) 509		0
7	Malay (ms) 509 (nombor)		0
8	Swedish (sv) 509 (tal)		0
9	Urdu (ur) 509 (عدد)		0
10	Uzbek (uz) 509 (son)		0

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The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "509" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Urdu (ur) 509 (عدد)		3 543
2	Uzbek (uz) 509 (son)		911
3	Vietnamese (vi) 509 (số)		600
4	Hungarian (hu) 509 (szám)		232
5	Swedish (sv) 509 (tal)		162
6	Czech (cs) 509 (číslo)		102
7	Japanese (ja) 509		26
8	Korean (ko) 509		17
9	Italian (it) 509 (numero)		9
10	French (fr) 509 (nombre)		8

More...

#	Language	Value
cs	Czech 509 (číslo)
fr	French 509 (nombre)
hu	Hungarian 509 (szám)
it	Italian 509 (numero)
ja	Japanese 509
ko	Korean 509
ms	Malay 509 (nombor)
sv	Swedish 509 (tal)
ur	Urdu 509 (عدد)
uz	Uzbek 509 (son)
vi	Vietnamese 509 (số)

Best Rank

Japanese: #450939 01.2016

Global: #2030181 02.2021

Best Rank

Japanese: #24596 11.2015

Global: #226996 07.2025

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In Japanese Wikipedia the most popular articles on that day were: 橋本愛 (1996年生), 超ときめき♡宣伝部, 塩貝健人, 鈴木彩艶, 泉里香, 谷口彰悟, 田中みな実, 佐野海舟, アーリング・ハーランド, 後藤輝樹.

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information