Numbers 620,000,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

[1M] & [10M] & [100M- [200M] - [300M] - [400M] - [500M] - [600M] - [700M] - [800M] - [900M]  & [1B]

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

622,888,970

[Math.] Two consecutive sums of consecutive square numbers:

622,888,970 = 37412+…+37842 = 37852+…+38272.

623,800,576

[Math.] Sum of the first 223 cube numbers:

13+23+…+2233 = 623,800,576 = (1+2+…+223)2 = 24,9762.

623,837,409

[Math.]  623,837,4093 =  242,780,746,383,933,673,463,008,929; All digits are “triplicated”. (References [15])

627,953,481

[Math.] 250592 = 627,953,481, one of thirty 9-digit square numbers using all 9 digits 1-9 once.

xyz,abc,def

[Math.]  For any xyz = 100 to 999, there are always six 6-digit numbers abc,edf such that the sum (xyz+abc,def) is equal to one of 6 digit-rotations of 142,857 and the number  xyz,abc,def is a multiple of 142,857.

For any xyz = 100 to 999, there are always twelve 6-digit numbers abc,edf such that the sum (xyz+abc,def) is equal to one of 12 digit-rotations of 076,923 or 153,846 and the number xyz,abc,def is a multiple of 76,923.