Friendly number

Friendly number - in mathematics, shares a property concerning its divisors. Article “Friendly number” in English Wikipedia has 35.1 points for quality (as of July 1, 2025). The article contains 12 references and 8 sections.

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

Since the creation of article “Friendly number”, its content was written by 67 registered users of English Wikipedia and edited by 116 registered Wikipedia users in all languages.

The article is cited 232 times in English Wikipedia and cited 456 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #46560 in November 2021
• Global: #39340 in January 2025

The highest popularity rank from 2008:

• Local (English): #76044 in April 2008
• Global: #120818 in April 2008

There are 10 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	Tamil (ta) நட்பார்ந்த எண்கள்		35.3982
2	English (en) Friendly number		35.1165
3	Greek (el) Φιλικός αριθμός		20.6778
4	Spanish (es) Números amigables		19.6528
5	Chinese (zh) 友誼數		18.2595
6	Russian (ru) Приятельские числа		10.4366
7	Persian (fa) اعداد دوست		7.1921
8	Esperanto (eo) Kompleza nombro		4.3048
9	Vietnamese (vi) Số thân thiện		2.1826
10	Korean (ko) 친구수		1.7254

More...

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

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

#	Language	Popularity award	Relative popularity
1	English (en) Friendly number		462 931
2	Chinese (zh) 友誼數		38 003
3	Persian (fa) اعداد دوست		34 807
4	Vietnamese (vi) Số thân thiện		9 351
5	Spanish (es) Números amigables		5 850
6	Esperanto (eo) Kompleza nombro		5 271
7	Russian (ru) Приятельские числа		4 913
8	Korean (ko) 친구수		3 214
9	Greek (el) Φιλικός αριθμός		2 968
10	Tamil (ta) நட்பார்ந்த எண்கள்		140

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 "Friendly number" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Friendly number		1 402
2	Chinese (zh) 友誼數		125
3	Persian (fa) اعداد دوست		64
4	Russian (ru) Приятельские числа		64
5	Spanish (es) Números amigables		61
6	Greek (el) Φιλικός αριθμός		56
7	Vietnamese (vi) Số thân thiện		41
8	Korean (ko) 친구수		12
9	Tamil (ta) நட்பார்ந்த எண்கள்		11
10	Esperanto (eo) Kompleza nombro		2

More...

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

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

#	Language	AI award	Relative AI
1	English (en) Friendly number		67
2	Chinese (zh) 友誼數		15
3	Persian (fa) اعداد دوست		8
4	Vietnamese (vi) Số thân thiện		6
5	Esperanto (eo) Kompleza nombro		5
6	Russian (ru) Приятельские числа		5
7	Korean (ko) 친구수		4
8	Greek (el) Φιλικός αριθμός		3
9	Spanish (es) Números amigables		2
10	Tamil (ta) நட்பார்ந்த எண்கள்		1

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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 "Friendly number" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Greek (el) Φιλικός αριθμός		0
2	English (en) Friendly number		0
3	Esperanto (eo) Kompleza nombro		0
4	Spanish (es) Números amigables		0
5	Persian (fa) اعداد دوست		0
6	Korean (ko) 친구수		0
7	Russian (ru) Приятельские числа		0
8	Tamil (ta) நட்பார்ந்த எண்கள்		0
9	Vietnamese (vi) Số thân thiện		0
10	Chinese (zh) 友誼數		0

More...

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

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

#	Language	CI award	Relative CI
1	English (en) Friendly number		232
2	Russian (ru) Приятельские числа		66
3	Esperanto (eo) Kompleza nombro		63
4	Chinese (zh) 友誼數		50
5	Persian (fa) اعداد دوست		24
6	Korean (ko) 친구수		8
7	Greek (el) Φιλικός αριθμός		5
8	Spanish (es) Números amigables		4
9	Tamil (ta) நட்பார்ந்த எண்கள்		2
10	Vietnamese (vi) Số thân thiện		2

More...

#	Language	Value
el	Greek Φιλικός αριθμός
en	English Friendly number
eo	Esperanto Kompleza nombro
es	Spanish Números amigables
fa	Persian اعداد دوست
ko	Korean 친구수
ru	Russian Приятельские числа
ta	Tamil நட்பார்ந்த எண்கள்
vi	Vietnamese Số thân thiện
zh	Chinese 友誼數

Best Rank

English: #76044 04.2008

Global: #120818 04.2008

Best Rank

English: #46560 11.2021

Global: #39340 01.2025

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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