查看“︁888”︁的源代码

{{noteTA|G1=Math}}
{{整数
| other list = {{Numbers digits|digit=10}}
}}
'''888'''是[[887]]与[[889]]之间的[[自然数]]。该数字同时拥有数学意义和象征意义。

==数字==
888是一个[[纯位数]]（由相同位元重复而组成的自然数）<ref>{{SloanesRef|sequencenumber=A010785|name=Repdigit numbers, or numbers with repeated digits}}</ref>。<math>888^3 = 700227072</math>是所有的每一个数字各出现3次的数中最小的[[立方数]]<ref>{{SloanesRef|sequencenumber=A052071|name=a(n)^3 is the smallest cube whose digits occur with the same frequency n}}</ref>，同时也是唯一一个3个不同的数恰好分别出现3次的[[立方数]]<ref>{{citation|title=Number Gossip|first=Tanya|last=Khovanova|year=2008|publisher=Gathering for Gardner|arxiv=0804.2277|url=http://www.tanyakhovanova.com/publications/0804.2277.pdf|accessdate=2015-12-08|archive-date=2017-12-09|archive-url=https://web.archive.org/web/20171209202601/http://www.tanyakhovanova.com/publications/0804.2277.pdf|dead-url=no}}</ref>。另外，888是所有能被24整除而且[[数字和]]是24的数中最小的数<ref>{{SloanesRef|sequencenumber=A002998|name=Smallest multiple of n whose digits sum to n}}</ref>，同时也是其中一个同时能被其[[数字和]]以及其各个位上的数字整除的一个数<ref>{{SloanesRef|sequencenumber=A051004|name=Numbers divisible both by their individual digits and by the sum of their digits}}</ref>。

888也是一个[[实际数]]（{{lang|en|practical numbers}}），意味着其本身可以用他的所有不同的因子（包括它本身）的和来表示<ref>{{cite web|url=http://jean-paul.davalan.pagesperso-orange.fr/arit/pract/practicalsnumbers.html|script-title=Nombres pratiques|publisher=Jeux et Mathématiques|work=Jean-Paul Davalan|accessdate=2013-01-31|language=fr|archive-url=https://web.archive.org/web/20121113111121/http://jean-paul.davalan.pagesperso-orange.fr/arit/pract/practicalsnumbers.html|archive-date=2012-11-13|dead-url=yes}}</ref>。

===信息===
{{數字性質|use math=yes}}

==象征意义==
在[[基督]][[数秘术]]中，888代指[[耶稣]]，有时又特别代指“救世主基督”（{{lang|en|Christ the Redeemer}}）。这种表示方法一说来源于将耶稣的名字的原文所对应的数字相加而得出<ref>{{citation|title=Numerology: Or What Pythagoras Wrought|series=[[Mathematical Association of America|MAA]] Spectrum|first=Underwood|last=Dudley|publisher=Cambridge University Press|year=1997|isbn=9780883855249|page=105|url=http://books.google.com/books?id=udptayxY2E8C&pg=PA105|accessdate=2015-12-08|archive-date=2014-06-30|archive-url=https://web.archive.org/web/20140630111219/http://books.google.com/books?id=udptayxY2E8C&pg=PA105|dead-url=no}}</ref>，另一说称这个数字与[[兽名数目]][[666]]的意义正好相反<ref>{{citation|title=Book Of Fate And Fortune: Numerology And Astrology|author=Cheiro|publisher=Orient Paperbacks|year=2005|isbn=9788122200461|page=60|url=http://books.google.com/books?id=464XH0LOCEgC&pg=PA60|accessdate=2015-12-08|archive-date=2014-06-30|archive-url=https://web.archive.org/web/20140630111025/http://books.google.com/books?id=464XH0LOCEgC&pg=PA60|dead-url=no}}</ref>。

在[[中国]]，888是一个吉利的象征。数字8在标准汉语中音同“发”，三个8组合在一起代表着富贵与吉祥<ref>{{citation|title=Understanding Information Systems: What They Do and Why We Need Them|first=Lee|last=Ratzan|publisher=American Library Association|year=2004|isbn=9780838908686|page=202|url=http://books.google.com/books?id=lrdRYCRjUZUC&pg=PA202|accessdate=2015-12-08|archive-date=2013-05-11|archive-url=https://web.archive.org/web/20130511161546/http://books.google.com/books?id=lrdRYCRjUZUC&pg=PA202|dead-url=no}}</ref>。正因如此，在中国，数字“8”连续出现三次或以上的电话号码会被视为幸运号码，同时受到许多人的欢迎<ref>{{citation|title=Working Across Cultures|first=John|last=Hooker|publisher=Stanford University Press|year=2003|isbn=9780804748070|page=191|url=http://books.google.com/books?id=wJXo_mOXd1IC&pg=PA191|accessdate=2015-12-08|archive-date=2013-05-11|archive-url=https://web.archive.org/web/20130511151837/http://books.google.com/books?id=wJXo_mOXd1IC&pg=PA191|dead-url=no}}</ref>。

==参见==
*[[數表]]
*[[111]]、[[222]]、[[333]]、[[444]]、[[555]]、[[666]]、[[777]]、'''888'''、[[999]]
*[[888年]]

==参考来源==
{{reflist|2}}

[[Category:整数]]