Number 86

A page of the Numeropedia - the Special Encyclopedia of Numbers

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[Chemistry]  The atomic number of Radon (Rn).

 

[Library]  ISBN-86 is the International Standard Book Number for books published in Yugoslavia, and now, for Serbia and Montenegro.

 

[Math.]  862 = 7396 = (73+96)2

863 = 636,056 = (6+360+56)3.

 

[Math.]  Sum of 3 square numbers in 3 ways: 86 = 12+72+62 = 52+52+62 = 12+22+92.

 

[Math.]  688 = 8×86.

 

[Math.]  34×86 = 2,924 = 43×68.

 

[Phone]  International telephone dialing code for China (mainland only).

 

[Tech.]  Intel CPU family x86: 8086 (8008, 8080, 8085, 8086, 8087, 8088), which followed 4004 & 4040 and 80186 (80186/80C187, 80188, 80286/80287, 80386/80387, 80486/80487). The x87 is math co-processor. 

 

[World]  The ISO country code for British Indian Ocean Territory (Chagos Archipelago) is 086. (ISO-3166).