28152720
28,152,720 is an even composite number composed of five prime numbers multiplied together.
28152720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 28152720:
24 × 32 × 5 × 61 × 641
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 61 × 641)See below for interesting mathematical facts about the number 28152720 from the Numbermatics database.
Names of 28152720
- Cardinal: 28152720 can be written as Twenty-eight million, one hundred fifty-two thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.815272 × 107
Factors of 28152720
Divisors of 28152720
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 61 72 80 90 120 122 144 180 183 240 244 305 360 366 488 549 610 641 720 732 915 976 1098 1220 1282 1464 1830 1923 2196 2440 2564 2745 2928 3205 3660 3846 4392 4880 5128 5490 5769 6410 7320 7692 8784 9615 10256 10980 11538 12820 14640 15384 19230 21960 23076 25640 28845 30768 38460 39101 43920 46152 51280 57690 76920 78202 92304 115380 117303 153840 156404 195505 230760 234606 312808 351909 391010 461520 469212 586515 625616 703818 782020 938424 1173030 1407636 1564040 1759545 1876848 2346060 2815272 3128080 3519090 4692120 5630544 7038180 9384240 14076360 28152720
- Sum of all divisors σ(n): 96246072
- Sum of proper divisors (its aliquot sum) s(n): 68093352
- 28152720 is an abundant number, because the sum of its proper divisors (68093352) is greater than itself. Its abundance is 39940632
Bases of 28152720
- Binary: 11010110110010011100100002
- Hexadecimal: 0x1AD9390
- Base-36: GRES0
Squares and roots of 28152720
- 28152720 squared (281527202) is 792575643398400
- 28152720 cubed (281527203) is 22313160167415003648000
-
The
square root of 28152720 is 5305.9136819213 -
The
cube root of 28152720 is 304.2099772775
Scales and comparisons
How big is 28152720?- 28,152,720 seconds is equal to 46 weeks, 3 days, 20 hours, 12 minutes.
-
To count from 1 to 28,152,720 would take you about seventeen 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 28152720 cubic inches would be around 25.4 feet tall.
Recreational maths with 28152720
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The information we have on file for 28152720 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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