128629728
128,629,728 is an even composite number composed of three prime numbers multiplied together.
128629728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 128629728:
25 × 33 × 533
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 53 × 53 × 53)See below for interesting mathematical facts about the number 128629728 from the Numbermatics database.
Names of 128629728
- Cardinal: 128629728 can be written as One hundred twenty-eight million, six hundred twenty-nine thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.28629728 × 108
Factors of 128629728
Divisors of 128629728
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 53 54 72 96 106 108 144 159 212 216 288 318 424 432 477 636 848 864 954 1272 1431 1696 1908 2544 2809 2862 3816 5088 5618 5724 7632 8427 11236 11448 15264 16854 22472 22896 25281 33708 44944 45792 50562 67416 75843 89888 101124 134832 148877 151686 202248 269664 297754 303372 404496 446631 595508 606744 808992 893262 1191016 1213488 1339893 1786524 2382032 2426976 2679786 3573048 4019679 4764064 5359572 7146096 8039358 10719144 14292192 16078716 21438288 32157432 42876576 64314864 128629728
- Sum of all divisors σ(n): 382384800
- Sum of proper divisors (its aliquot sum) s(n): 253755072
- 128629728 is an abundant number, because the sum of its proper divisors (253755072) is greater than itself. Its abundance is 125125344
Bases of 128629728
- Binary: 1111010101010111011111000002
- Hexadecimal: 0x7AABBE0
- Base-36: 24KZC0
Squares and roots of 128629728
- 128629728 squared (1286297282) is 16545606925353984
- 128629728 cubed (1286297283) is 2128256918403199265636352
-
The
square root of 128629728 is 11341.5046620807 -
The
cube root of 128629728 is 504.7935345259
Scales and comparisons
How big is 128629728?- 128,629,728 seconds is equal to 4 years, 4 weeks, 4 days, 18 hours, 28 minutes, 48 seconds.
-
To count from 1 to 128,629,728 would take you about six 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 128629728 cubic inches would be around 42.1 feet tall.
Recreational maths with 128629728
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The information we have on file for 128629728 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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