21148920
21,148,920 is an even composite number composed of five prime numbers multiplied together.
21148920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21148920:
23 × 32 × 5 × 13 × 4519
(2 × 2 × 2 × 3 × 3 × 5 × 13 × 4519)See below for interesting mathematical facts about the number 21148920 from the Numbermatics database.
Names of 21148920
- Cardinal: 21148920 can be written as Twenty-one million, one hundred forty-eight thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.114892 × 107
Factors of 21148920
Divisors of 21148920
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 30 36 39 40 45 52 60 65 72 78 90 104 117 120 130 156 180 195 234 260 312 360 390 468 520 585 780 936 1170 1560 2340 4519 4680 9038 13557 18076 22595 27114 36152 40671 45190 54228 58747 67785 81342 90380 108456 117494 135570 162684 176241 180760 203355 234988 271140 293735 325368 352482 406710 469976 528723 542280 587470 704964 813420 881205 1057446 1174940 1409928 1626840 1762410 2114892 2349880 2643615 3524820 4229784 5287230 7049640 10574460 21148920
- Sum of all divisors σ(n): 74037600
- Sum of proper divisors (its aliquot sum) s(n): 52888680
- 21148920 is an abundant number, because the sum of its proper divisors (52888680) is greater than itself. Its abundance is 31739760
Bases of 21148920
- Binary: 10100001010110100111110002
- Hexadecimal: 0x142B4F8
- Base-36: CLAM0
Squares and roots of 21148920
- 21148920 squared (211489202) is 447276817166400
- 21148920 cubed (211489203) is 9459421624106820288000
-
The
square root of 21148920 is 4598.7954944749 -
The
cube root of 21148920 is 276.5430392321
Scales and comparisons
How big is 21148920?- 21,148,920 seconds is equal to 34 weeks, 6 days, 18 hours, 42 minutes.
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To count from 1 to 21,148,920 would take you about three days!
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 21148920 cubic inches would be around 23 feet tall.
Recreational maths with 21148920
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The information we have on file for 21148920 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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