128729700
128,729,700 is an even composite number composed of five prime numbers multiplied together.
128729700 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 128729700:
22 × 32 × 52 × 11 × 13003
(2 × 2 × 3 × 3 × 5 × 5 × 11 × 13003)See below for interesting mathematical facts about the number 128729700 from the Numbermatics database.
Names of 128729700
- Cardinal: 128729700 can be written as One hundred twenty-eight million, seven hundred twenty-nine thousand, seven hundred.
Scientific notation
- Scientific notation: 1.287297 × 108
Factors of 128729700
Divisors of 128729700
- Number of divisors d(n): 108
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Complete list of divisors:
1 2 3 4 5 6 9 10 11 12 15 18 20 22 25 30 33 36 44 45 50 55 60 66 75 90 99 100 110 132 150 165 180 198 220 225 275 300 330 396 450 495 550 660 825 900 990 1100 1650 1980 2475 3300 4950 9900 13003 26006 39009 52012 65015 78018 117027 130030 143033 156036 195045 234054 260060 286066 325075 390090 429099 468108 572132 585135 650150 715165 780180 858198 975225 1170270 1287297 1300300 1430330 1716396 1950450 2145495 2340540 2574594 2860660 2925675 3575825 3900900 4290990 5149188 5851350 6436485 7151650 8581980 10727475 11702700 12872970 14303300 21454950 25745940 32182425 42909900 64364850 128729700
- Sum of all divisors σ(n): 440211408
- Sum of proper divisors (its aliquot sum) s(n): 311481708
- 128729700 is an abundant number, because the sum of its proper divisors (311481708) is greater than itself. Its abundance is 182752008
Bases of 128729700
- Binary: 1111010110001000010011001002
- Hexadecimal: 0x7AC4264
- Base-36: 24N4H0
Squares and roots of 128729700
- 128729700 squared (1287297002) is 16571335662090000
- 128729700 cubed (1287297003) is 2133223068380147073000000
-
The
square root of 128729700 is 11345.9111577695 -
The
cube root of 128729700 is 504.9242771147
Scales and comparisons
How big is 128729700?- 128,729,700 seconds is equal to 4 years, 4 weeks, 5 days, 22 hours, 15 minutes.
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To count from 1 to 128,729,700 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 128729700 cubic inches would be around 42.1 feet tall.
Recreational maths with 128729700
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The information we have on file for 128729700 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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