21343920
21,343,920 is an even composite number composed of five prime numbers multiplied together.
21343920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21343920:
24 × 3 × 5 × 13 × 6841
(2 × 2 × 2 × 2 × 3 × 5 × 13 × 6841)See below for interesting mathematical facts about the number 21343920 from the Numbermatics database.
Names of 21343920
- Cardinal: 21343920 can be written as Twenty-one million, three hundred forty-three thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.134392 × 107
Factors of 21343920
Divisors of 21343920
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 624 780 1040 1560 3120 6841 13682 20523 27364 34205 41046 54728 68410 82092 88933 102615 109456 136820 164184 177866 205230 266799 273640 328368 355732 410460 444665 533598 547280 711464 820920 889330 1067196 1333995 1422928 1641840 1778660 2134392 2667990 3557320 4268784 5335980 7114640 10671960 21343920
- Sum of all divisors σ(n): 71266272
- Sum of proper divisors (its aliquot sum) s(n): 49922352
- 21343920 is an abundant number, because the sum of its proper divisors (49922352) is greater than itself. Its abundance is 28578432
Bases of 21343920
- Binary: 10100010110101110101100002
- Hexadecimal: 0x145AEB0
- Base-36: CPH2O
Squares and roots of 21343920
- 21343920 squared (213439202) is 455562920966400
- 21343920 cubed (213439203) is 9723498540073164288000
-
The
square root of 21343920 is 4619.9480516559 -
The
cube root of 21343920 is 277.3903795577
Scales and comparisons
How big is 21343920?- 21,343,920 seconds is equal to 35 weeks, 2 days, 52 minutes.
-
To count from 1 to 21,343,920 would take you about six 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 21343920 cubic inches would be around 23.1 feet tall.
Recreational maths with 21343920
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The information we have on file for 21343920 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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