Numbers 6,500,000,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

6,100,000,0006,200,000,0006,300,000,0006,400,000,000

6,500,000,0006,600,000,0006,700,000,0006,800,000,000 – 6,900,000,000

[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 ...

6,543,209,817

[Math.]   One of 27 special permutations of the pan-digital number 1,234,567,890: 123,456,789×53 = 6,543,209,817.

6,561,486,009

[Math.]   Sum of the first 402 cube numbers:

13+…+4023 = 6,561,486,009 = (1+2+…+402)2 = 81,0032.

6,564,120,420

[Math.]   A Catalan number: C20 = 6,564,120,420.

6,567,629,137

[Math.]   A prime number truncated from the largest known left-truncatable prime number 357,686,312,646,216,567,629,137.

6,597,013,284

[Math.]   812222 = 6,597,013,284, a square number using each of 10 digits 0-9 once. (The 61st of 87 such numbers).

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.