Numbers 8,600,000,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

8,100,000,0008,200,000,0008,300,000,0008,400,000,000

8,500,000,0008,600,000,0008,700,000,0008,800,000,000 – 8,900,000,000

[1B] – [2B] – [3B] – [4B] – [5B] – [6B] – [7B] – [8B]  – [9B] & [10B]

1  - 10 - 100  - 1000 - 10,000 - 100,000 - 1M - 10M - 100M1B10B - 100B - 1T - 10T - 100T - 1Q ...

8,641,975,230

[Math.]   One of 27 special permutations of the pan-digital number 1,234,567,890: 123,456,789×70 = 8,641,975,230.

8,642,197,530

[Math.]   4,321,098,765 and 4,321,098,765´2 = 8,642,197,530 are all pan-digital numbers.

8,657,437,697

[Math.]   A number that is the sum of two 4th powers in 2 ways: 8,657,437,697 = 1934+2924 = 2564+2574.

8,666,865,216

[Math.]   Sum of the first 431 cube numbers:

13+…+4313 = 8,666,865,216 = (1+2+…+431)2 = 93,0962.

x,yzw,abc,def

[Math.]  For any x,yzw = 1000 to 9999, there are always six 6-digit numbers abc,edf such that x,yzw +abc,def is equal to one of 6 digit-rotations of 142,857 and the number x,yzw,abc,def is a multiple of 142,857.

For any x,yzw = 1000 to 9999, there are always twelve 6-digit numbers abc,edf such that x,yzw +abc,def is equal to one of 12 digit-rotations of 076,923 or 153,846 and the number x,yzw,abc,def is a multiple of 76,923.