1388075728
1,388,075,728 is an even composite number composed of five prime numbers multiplied together.
What does the number 1388075728 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 80 divisors.
1388075728 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 1388075728:
24 × 13 × 73 × 113 × 809
(2 × 2 × 2 × 2 × 13 × 73 × 113 × 809)See below for interesting mathematical facts about the number 1388075728 from the Numbermatics database.
Names of 1388075728
- Cardinal: 1388075728 can be written as One billion, three hundred eighty-eight million, seventy-five thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.388075728 × 109
Factors of 1388075728
Divisors of 1388075728
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 8 13 16 26 52 73 104 113 146 208 226 292 452 584 809 904 949 1168 1469 1618 1808 1898 2938 3236 3796 5876 6472 7592 8249 10517 11752 12944 15184 16498 21034 23504 32996 42068 59057 65992 84136 91417 107237 118114 131984 168272 182834 214474 236228 365668 428948 472456 731336 767741 857896 944912 1188421 1462672 1535482 1715792 2376842 3070964 4753684 6141928 6673441 9507368 12283856 13346882 19014736 26693764 53387528 86754733 106775056 173509466 347018932 694037864 1388075728
- Sum of all divisors σ(n): 2965591440
- Sum of proper divisors (its aliquot sum) s(n): 1577515712
- 1388075728 is an abundant number, because the sum of its proper divisors (1577515712) is greater than itself. Its abundance is 189439984
Bases of 1388075728
- Binary: 10100101011110001011010110100002
- Hexadecimal: 0x52BC5AD0
- Base-36: MYFA34
Squares and roots of 1388075728
- 1388075728 squared (13880757282) is 1926754226662729984
- 1388075728 cubed (13880757283) is 2674480775851945933008228352
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The
square root of 1388075728 is 37256.8883295425 -
The
cube root of 1388075728 is 1115.5037982851
Scales and comparisons
How big is 1388075728?- 1,388,075,728 seconds is equal to 44 years, 7 weeks, 16 hours, 35 minutes, 28 seconds.
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To count from 1 to 1,388,075,728 would take you about eighty-eight years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 1388075728 cubic inches would be around 93 feet tall.
Recreational maths with 1388075728
- 1388075728 backwards is 8275708831
- The number of decimal digits it has is: 10
- The sum of 1388075728's digits is 49
- More coming soon!
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The information we have on file for 1388075728 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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