22 (عدد)

← 21 22 23 →
← 20 21 22 23 24 25 26 27 28 29 → قائمة الأعداد; الأعداد الصحيحة; ← 0 10 20 30 40 50 60 70 80 90 →
كمي	صفر
ترتيبي	22nd; (صفر)
نظام العد	Duovigesimal
التحليل لعوامل	2 × 11
القواسم	1, 2, 11, 22
العدد اليوناني	ΚΒ´
العدد الروماني	XXII
ثنائي	101102
ثلاثي	2113
رباعي	1124
خماسي	425
سداسي	346
ثماني	268
اثنا عشري	1A12
ستة عشري	1616
عشريني	1220
أساس 36	M36

22 (اثنان وعشرون) هو عدد صحيح يلي العدد 21 ويسبق العدد 23 وهو عدد طبيعي موجب.

في الرياضيات

22 is a semiprime,^[1] a Smith number, and an Erdős–Woods number.^[2]^[3] ${\frac {22}{7}}=3.14{\color {red}28}\ldots$ is a commonly used approximation of the irrational number $π$ , the ratio of the circumference of a circle to its diameter.

22 can read as "two twos", which is the only fixed point of John Conway's look-and-say function.^[4]

العدد 22 appears prominently within sporadic groups. The Mathieu group M₂₂ is one of 26 sporadic finite simple groups, defined as the 3-transitive permutation representation on 22 points.^[5] There are also 22 regular complex apeirohedra.^[6]

في المجالات الأخرى

There are 22 genetically encoded amino acids throughout known life that generate proteins during RNA translation.^[7]
Catch-22 (1961), Joseph Heller's novel, and its 1970 film adaptation gave rise to the expression of logic "catch-22".^[8]
22 equal temperament is a popular microtonal tuning temperament due to its good approximation of harmonic intervals, especially septimal intervals.

في الثقافة والدين

22 is a master number in numerology.^[9]
There are 22 colored properties on a traditional Monopoly board.
There are 22 cards in the Major Arcana suit of a traditional tarot card deck, though they are often numbered 0-21.

في الأوزان والمقاييس

The number of yards in a chain.^[10]

في الاستخدامات الأخرى

Twenty-two may also refer to:

In French jargon, "22" is used as a phrase to warn of the coming of the police (typically "22, v'là les flics !", in English: "5-0! Cops!")
In Spanish lottery and bingo, 22 is nicknamed los dos patitos, 'the two little ducks' after its shape.^[11]^[12]

انظر أيضاً

Catch 22 (disambiguation)

المراجع

^ Sloane, N. J. A. (ed.). "Sequence A001358". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
^ Sloane, N. J. A. (ed.). "Sequence A006753 (Smith numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
^ Sloane, N. J. A. (ed.). "Sequence A059756 (Erdős-Woods numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
^ Sloane, N. J. A. (ed.). "Sequence A010861 (Look-and-say constant sequence 22)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-07-21.
^ Weisstein, Eric W. "Mathieu Groups". mathworld.wolfram.com (in الإنجليزية). Retrieved 2022-07-02.
^ Coxeter, H.S.M. (1991), Regular Complex Polytopes, Cambridge University Press, p. 140, ISBN 0-521-39490-2
^ Ambrogelly A, Palioura S, Söll D (January 2007). "Natural expansion of the genetic code". Nature Chemical Biology. 3 (1): 29–35. doi:10.1038/nchembio847. PMID 17173027.
^ "Definition of CATCH-22". www.merriam-webster.com (in الإنجليزية). Retrieved 2020-08-12.
^ Sharp, Damian (2001). Simple Numerology: A Simple Wisdom book (A Simple Wisdom Book series) (in English). Red Wheel. p. 7. ISBN 978-1-57324-560-9.{{cite book}}: CS1 maint: unrecognized language (link)
^ "Definition of CHAIN". www.merriam-webster.com (in الإنجليزية). Retrieved 2020-08-19. a unit of length equal to 66 feet
^ Cuartas, Javier (1990-01-05). "La suerte de los dos patitos" [The luck of the two little ducks]. El País (in الإسبانية). Oviedo. Retrieved 17 September 2020.
^ Sanz, Elena (26 April 2010). "Los dos patitos, la niña bonita, la mala pata..." Muy Interesante (in الإسبانية). Retrieved 17 September 2020. Lo más normal es que el nombre tuviera que ver con la forma del número. Por ejemplo, el 11 era las banderillas, y el 22, los dos patitos o las monjas arrodilladas.

وصلات خارجية

"The Number 22 at The Database of Number Correlations". Virtuescience.

This article contains content from Wikimedia licensed under CC BY-SA 4.0. Please comply with the license terms.

[1] Sloane, N. J. A. (ed.). "Sequence A001358". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.

[2] Sloane, N. J. A. (ed.). "Sequence A006753 (Smith numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.

[3] Sloane, N. J. A. (ed.). "Sequence A059756 (Erdős-Woods numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.

[4] Sloane, N. J. A. (ed.). "Sequence A010861 (Look-and-say constant sequence 22)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-07-21.

[5] Weisstein, Eric W. "Mathieu Groups". mathworld.wolfram.com (in الإنجليزية). Retrieved 2022-07-02.

[6] Coxeter, H.S.M. (1991), Regular Complex Polytopes, Cambridge University Press, p. 140, ISBN 0-521-39490-2

[7] Ambrogelly A, Palioura S, Söll D (January 2007). "Natural expansion of the genetic code". Nature Chemical Biology. 3 (1): 29–35. doi:10.1038/nchembio847. PMID 17173027.

[8] "Definition of CATCH-22". www.merriam-webster.com (in الإنجليزية). Retrieved 2020-08-12.

[9] Sharp, Damian (2001). Simple Numerology: A Simple Wisdom book (A Simple Wisdom Book series) (in English). Red Wheel. p. 7. ISBN 978-1-57324-560-9.{{cite book}}: CS1 maint: unrecognized language (link)

[10] "Definition of CHAIN". www.merriam-webster.com (in الإنجليزية). Retrieved 2020-08-19. a unit of length equal to 66 feet

[Cuartas-11] Cuartas, Javier (1990-01-05). "La suerte de los dos patitos" [The luck of the two little ducks]. El País (in الإسبانية). Oviedo. Retrieved 17 September 2020.

[Sanz-12] Sanz, Elena (26 April 2010). "Los dos patitos, la niña bonita, la mala pata..." Muy Interesante (in الإسبانية). Retrieved 17 September 2020. Lo más normal es que el nombre tuviera que ver con la forma del número. Por ejemplo, el 11 era las banderillas, y el 22, los dos patitos o las monjas arrodilladas.

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