Numbers 8,400,000,000s

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 ...

8,428,341,636

[Math.]   Sum of the first 428 cube numbers:

13+…+4283 = 8,666,865,216 = (1+2+…+428)2 = 91,8062.

8,439,506,172

[Math.]   2,109,876,543, 2,109,876,543×2 = 4,219,753,086 and 2,109,876,543×4 = 8,439,506,172 are all pan-digital numbers. Hence, a pan-digital number factorization: 4,219,753,0862 = 2,109,876,543×8,439,506,172.

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.