ベル数

Bell number - integer sequence counting the possible partitions of a set. Article “ベル数” in Japanese Wikipedia has 14.1 points for quality (as of July 1, 2025). The article contains 6 references and 9 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Japanese) language version.

Since the creation of article “ベル数”, its content was written by 17 registered users of Japanese Wikipedia and edited by 486 registered Wikipedia users in all languages.

The article is cited 118 times in Japanese Wikipedia and cited 1547 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Japanese): #21890 in March 2025
• Global: #10027 in May 2003

The highest popularity rank from 2008:

• Local (Japanese): #125596 in January 2025
• Global: #111550 in May 2018

There are 26 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, 2025 (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	English (en) Bell number		57.3719
2	Tamil (ta) பெல் எண்		50.1827
3	Basque (eu) Bellen zenbaki		47.5048
4	Greek (el) Αριθμοί Μπελ		41.1711
5	Korean (ko) 벨 수		32.9547
6	German (de) Bellsche Zahl		29.7649
7	Catalan (ca) Nombres de Bell		27.5691
8	Turkish (tr) Bell sayısı		26.595
9	Ukrainian (uk) Число Белла		26.1089
10	Arabic (ar) عدد بيل		24.0176

More...

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

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

#	Language	Popularity award	Relative popularity
1	English (en) Bell number		887 328
2	Russian (ru) Число Белла		117 868
3	German (de) Bellsche Zahl		87 684
4	French (fr) Nombre de Bell		83 307
5	Polish (pl) Liczby Bella		79 227
6	Japanese (ja) ベル数		64 880
7	Spanish (es) Número de Bell		55 174
8	Italian (it) Numeri di Bell		37 307
9	Chinese (zh) 贝尔数		29 823
10	Persian (fa) اعداد بل		19 734

More...

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 "ベル数" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Bell number		4 380
2	Japanese (ja) ベル数		488
3	Russian (ru) Число Белла		406
4	French (fr) Nombre de Bell		307
5	German (de) Bellsche Zahl		225
6	Italian (it) Numeri di Bell		159
7	Spanish (es) Número de Bell		144
8	Chinese (zh) 贝尔数		130
9	Vietnamese (vi) Số Bell		101
10	Korean (ko) 벨 수		93

More...

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

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

#	Language	AI award	Relative AI
1	English (en) Bell number		112
2	French (fr) Nombre de Bell		54
3	German (de) Bellsche Zahl		51
4	Italian (it) Numeri di Bell		34
5	Vietnamese (vi) Số Bell		30
6	Russian (ru) Число Белла		25
7	Spanish (es) Número de Bell		19
8	Japanese (ja) ベル数		17
9	Chinese (zh) 贝尔数		15
10	Greek (el) Αριθμοί Μπελ		14

More...

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

Language versions of the article "ベル数" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) Bell number		2
2	Korean (ko) 벨 수		1
3	Arabic (ar) عدد بيل		0
4	Catalan (ca) Nombres de Bell		0
5	German (de) Bellsche Zahl		0
6	Greek (el) Αριθμοί Μπελ		0
7	Spanish (es) Número de Bell		0
8	Basque (eu) Bellen zenbaki		0
9	Persian (fa) اعداد بل		0
10	Finnish (fi) Bellin luvut		0

More...

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

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

#	Language	CI award	Relative CI
1	English (en) Bell number		277
2	Hungarian (hu) Bell-szám		153
3	Swedish (sv) Belltal		152
4	French (fr) Nombre de Bell		147
5	Japanese (ja) ベル数		118
6	Arabic (ar) عدد بيل		106
7	German (de) Bellsche Zahl		101
8	Ukrainian (uk) Число Белла		99
9	Persian (fa) اعداد بل		85
10	Russian (ru) Число Белла		65

More...

#	Language	Value
ar	Arabic عدد بيل
ca	Catalan Nombres de Bell
de	German Bellsche Zahl
el	Greek Αριθμοί Μπελ
en	English Bell number
es	Spanish Número de Bell
eu	Basque Bellen zenbaki
fa	Persian اعداد بل
fi	Finnish Bellin luvut
fr	French Nombre de Bell
he	Hebrew מספרי בל
hu	Hungarian Bell-szám
it	Italian Numeri di Bell
ja	Japanese ベル数
kk	Kazakh Белл сандары
ko	Korean 벨 수
nl	Dutch Getal van Bell
pl	Polish Liczby Bella
ru	Russian Число Белла
sl	Slovenian Bellovo število
sv	Swedish Belltal
ta	Tamil பெல் எண்
tr	Turkish Bell sayısı
uk	Ukrainian Число Белла
vi	Vietnamese Số Bell
zh	Chinese 贝尔数

Best Rank

Japanese: #125596 01.2025

Global: #111550 05.2018

Best Rank

Japanese: #21890 03.2025

Global: #10027 05.2003

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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 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information