28989900
28,989,900 is an even composite number composed of four prime numbers multiplied together.
28989900 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 28989900:
22 × 35 × 52 × 1193
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 1193)See below for interesting mathematical facts about the number 28989900 from the Numbermatics database.
Names of 28989900
- Cardinal: 28989900 can be written as Twenty-eight million, nine hundred eighty-nine thousand, nine hundred.
Scientific notation
- Scientific notation: 2.89899 × 107
Factors of 28989900
Divisors of 28989900
- Number of divisors d(n): 108
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 81 90 100 108 135 150 162 180 225 243 270 300 324 405 450 486 540 675 810 900 972 1193 1215 1350 1620 2025 2386 2430 2700 3579 4050 4772 4860 5965 6075 7158 8100 10737 11930 12150 14316 17895 21474 23860 24300 29825 32211 35790 42948 53685 59650 64422 71580 89475 96633 107370 119300 128844 161055 178950 193266 214740 268425 289899 322110 357900 386532 483165 536850 579798 644220 805275 966330 1073700 1159596 1449495 1610550 1932660 2415825 2898990 3221100 4831650 5797980 7247475 9663300 14494950 28989900
- Sum of all divisors σ(n): 94311672
- Sum of proper divisors (its aliquot sum) s(n): 65321772
- 28989900 is an abundant number, because the sum of its proper divisors (65321772) is greater than itself. Its abundance is 36331872
Bases of 28989900
- Binary: 11011101001011001110011002
- Hexadecimal: 0x1BA59CC
- Base-36: H9CR0
Squares and roots of 28989900
- 28989900 squared (289899002) is 840414302010000
- 28989900 cubed (289899003) is 24363526573839699000000
-
The
square root of 28989900 is 5384.2269640125 -
The
cube root of 28989900 is 307.1960113007
Scales and comparisons
How big is 28989900?- 28,989,900 seconds is equal to 47 weeks, 6 days, 12 hours, 45 minutes.
-
To count from 1 to 28,989,900 would take you about nineteen weeks!
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 28989900 cubic inches would be around 25.6 feet tall.
Recreational maths with 28989900
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The information we have on file for 28989900 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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