Numbers 27,000,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

20,000,000 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]

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27,304,196

[Math.]  The 10th square number that is the sum of squares of 2 consecutive numbers: 38,613,9652 = 27,304,1962+27,304,1972. Each root number in the series is 6 times the previous root number minus the earlier root number: 1, 52, 292, 1692, 9852

Or in other words:

(27,304,196, 27,304,197, 38,613,965) is the 10th Pythagorean triple (lengths of 3 sides of a right triangle), where 2 sides are consecutive integers.

 

27,428,276

[Math.]  A pair of amicable numbers (23628940, 27428276).

 

27,594,009

[Math.]  Sum of the first 102 cube numbers:

13+23+…+1013+1023 = 27,594,009 = (1+2+…+101+102)2 = 52532.

 

27,602,761

[Math.]  A prime number. So are 27,682,769, 27,642,763 and 27,622,761.

 

27,818,127

[Math.]  3033 = 27,818,127, is also a concatenation of cubes, 1, 8 and 27.

 

27,878,400

[Measure]  The number of square feet in a square mile.

U.S. customary units for area measures: 1 acre = 160 square rods = 4,840 square yards = 43,560 square feet = 6,272,640 square inches = 4046.8564224 m2 & 1 square mile (1 section) = 640 acres = 2,589,988.11 m2 = 2.59 km2 = 259 hectares & 1 hectare = 2.471 acres = 10,000 m2 & 1 township = 36 square miles.

 

27,999,972

[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.