Numbers 8,500,000,000s

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 ...

8,503,421,796

[Math.]   922142 = 8,503,421,796, a square number using each of 10 digits 0-9 once. (The 80th of 87 such numbers).

8,507,295,225

[Math.]   Sum of the first 429 cube numbers:

13+…+4293 = 8,507,295,225 = (1+2+…+429)2 = 92,2352.

8,549,176,320

[Language]   The 10-digit number whose digits are distinct and in the English alphabetical consecutive order.

8,574,218,751

[Math.]   Its odd powers end with 8,574,218,751.  Its even powers end with 0,000,000,001.

8,579,523,925

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

8,579,523,925 = 107312+…+108042 = 108052+…+108772.

8,586,802,225

[Math.]   Sum of the first 430 cube numbers:

13+…+4303 = 8,586,802,225 = (1+2+…+430)2 = 92,6652.

8,589,869,056

[Math.]   A triangular number (sum of all integers from 1 to 131071): 8,589,869,056 = 1+2+…+131070+131071.

8,589,869,056

[Math.]   The 6th perfect number; i.e., a number equal to the sum of all of its proper divisors, including 1 (or also called aliquot divisors). The first perfect numbers are: 6, 28, 496, 8128, 212(213–1) = 33550336, 216(217–1) = 8,589,869,056, 218(219–1) = 137,438,691,328…

8,589,934,592

[Math.]   The largest known power of 10 that can be represented as the product of 2 numbers, which have no digits 0: 1033 = 233×533 = 8,589,934,592×116,415,321,826,934,814,453,125.

8,589,935,681

[Math.]   One of only a few prime numbers of the form (xy+yx): 8589935681 = 233+332.

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.