Numbers 22,000,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

21,000,00022,000,00023,000,000 – 24,000,000

25,000,00026,000,00027,000,00028,000,00029,000,000

All Numbers  & [1M] & [10M- [20M] - [30M] - [40M] - [50M] - [60M] - [70M] - [80M] - [90M]  &  [100M]

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

22,218,336

[Math.]  22,218,336 = 4494×4944 = 2568×8652.

22,221,111

[Math.]  A special triangular number (sum of all integers from 1 to 6666):

22,221,111 = 1+2+…+6665+6666.

22,227,075

[Math.]  A pair of amicable numbers (22227075, 24644925).

22,240,485

[Math.]  A pair of amicable numbers (18194715, 22240485).

22,249,552

[Math.]  A pair of amicable numbers (22249552, 25325528).

22,508,145

[Math.]  A pair of amicable numbers (22508145, 23111055).

22,591,009

[Math.]  Sum of the first 97 cube numbers:

13+23+…+963+973 = 22,591,009 = (1+2+…+96+97)2 = 47532.

22,608,632

[Math.]  A pair of amicable numbers (22608632, 25775368).

22,676,644

[Math.]  47622 = 22,676,644 has the same four digits with the number itself.

22,777,944

[Math.]  A base system of multigrade equalities: (

1+5+10+18+23+27 = 84 = 2+3+13+15+25+26

12+52+102+182+232+272 = 1,708 = 22+32+132+152+252+262

13+53+103+183+233+273 = 38,808 = 23+33+133+153+253+263

14+54+104+184+234+274 = 926,884 = 24+34+134+154+254+264

15+55+105+185+235+275 = 22,777,944 = 25+35+135+155+255+265

Multigrade equalities still hold by adding any integer n to every base term in both sides.  Hence, the base equality always has number 1 appearing in one side.

22,823,432

[Math.]  A pair of amicable numbers (20022328, 22823432).

xy,abc,def

[Math.]  For any xy = 10 to 99, there are always six 6-digit numbers abc,edf such that the sum (xy+abc,def) is equal to one of 6 digit-rotations of 142,857 and the number xy,abc,def is a multiple of 142,857.

For any xy = 10 to 99, there are always twelve 6-digit numbers abc,edf such that the sum (xy+abc,def) is equal to one of 12 digit-rotations of 076,923 or 153,846 and the number xy,abc,def is a multiple of 76,923.

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References [20]