Numbers 48,000,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

40,000,000 41,000,00042,000,00043,000,00044,000,000

45,000,00046,000,00047,000,00048,000,00049,000,000

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

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48,024,900

[Math.]  The 6th square number that is also a triangular number: 69302 = 1+2+…+9800 = 48,024,900. Each root number in the series is 6 times the previous root number minus the earlier root number: 1, 62, 352, 2042, 11892

 

48,177,481

[Math.]  69412 = 48,177,481.

 

48,228,544

[Math.]  48,228,544 = (048–228+544)3 = 3643.

 

48,427,561

[Math.]  Sum 1+91+92+93+…+97+98 = 48,427,561 is a triangular number = 1+2+…+9840+9841.

 

48,471,470

[Math.]  A pair of amicable numbers (46991890, 48471470).

 

48,639,032

[Math.]  A pair of amicable numbers (48639032, 52967368).

 

48,641,584

[Math.]  A pair of amicable numbers (48641584, 48852176).

 

48,844,761

[Math.]  48,844,761 = 12+23+35+47+511.

 

48,852,176

[Math.]  A pair of amicable numbers (48641584, 48852176).

 

48,999,951

[Math.] 

7,683,984 = 1584×4851 = 27722

782432784 = 15984×48951 = 279722

78384320784 = 159984×489951 = 2799722

7839843200784 = 1599984×4899951 = 27999722

783998432000784 = 15999984×48999951 = 279999722

7839…9984320000784 = 159…999984×489…999951 = 279…9999722

...

 

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.