Numbers 7,400,000,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

7,000,000,000 7,100,000,0007,200,000,0007,300,000,0007,400,000,000

7,500,000,0007,600,000,0007,700,000,0007,800,000,000 – 7,900,000,000

All Numbers[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 ...

7,408,561,329

[Math.]   860732 = 7,408,561,329, a square number using each of 10 digits 0-9 once. (The 68th of 87 such numbers).

 

7,416,043,776

[Math.]   2,584,043,776 = 258402+437762 and 7,416,043,776 = 741602+437762, where 74160+25840 = 100,000.

 

7,451,142,400

[Math.]   Sum of the first 415 cube numbers:

13+…+4153 = 7,451,142,400 = (1+2+…+415)2 = 86,3202.

 

7,474,029,420

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

7,474,029,420 = 101532+…+102242 = 102252+…+102952.

 

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.