20438820
20,438,820 is an even composite number composed of five prime numbers multiplied together.
20438820 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 20438820:
22 × 32 × 5 × 271 × 419
(2 × 2 × 3 × 3 × 5 × 271 × 419)See below for interesting mathematical facts about the number 20438820 from the Numbermatics database.
Names of 20438820
- Cardinal: 20438820 can be written as Twenty million, four hundred thirty-eight thousand, eight hundred twenty.
Scientific notation
- Scientific notation: 2.043882 × 107
Factors of 20438820
Divisors of 20438820
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 271 419 542 813 838 1084 1257 1355 1626 1676 2095 2439 2514 2710 3252 3771 4065 4190 4878 5028 5420 6285 7542 8130 8380 9756 12195 12570 15084 16260 18855 24390 25140 37710 48780 75420 113549 227098 340647 454196 567745 681294 1021941 1135490 1362588 1703235 2043882 2270980 3406470 4087764 5109705 6812940 10219410 20438820
- Sum of all divisors σ(n): 62375040
- Sum of proper divisors (its aliquot sum) s(n): 41936220
- 20438820 is an abundant number, because the sum of its proper divisors (41936220) is greater than itself. Its abundance is 21497400
Bases of 20438820
- Binary: 10011011111011111001001002
- Hexadecimal: 0x137DF24
- Base-36: C62P0
Squares and roots of 20438820
- 20438820 squared (204388202) is 417745362992400
- 20438820 cubed (204388203) is 8538222280036324968000
-
The
square root of 20438820 is 4520.9313199827 -
The
cube root of 20438820 is 273.4126513147
Scales and comparisons
How big is 20438820?- 20,438,820 seconds is equal to 33 weeks, 5 days, 13 hours, 27 minutes.
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To count from 1 to 20,438,820 would take you about fifty 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 20438820 cubic inches would be around 22.8 feet tall.
Recreational maths with 20438820
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The information we have on file for 20438820 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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