20420820
20,420,820 is an even composite number composed of six prime numbers multiplied together.
20420820 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 20420820:
22 × 32 × 5 × 7 × 19 × 853
(2 × 2 × 3 × 3 × 5 × 7 × 19 × 853)See below for interesting mathematical facts about the number 20420820 from the Numbermatics database.
Names of 20420820
- Cardinal: 20420820 can be written as Twenty million, four hundred twenty thousand, eight hundred twenty.
Scientific notation
- Scientific notation: 2.042082 × 107
Factors of 20420820
Divisors of 20420820
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 18 19 20 21 28 30 35 36 38 42 45 57 60 63 70 76 84 90 95 105 114 126 133 140 171 180 190 210 228 252 266 285 315 342 380 399 420 532 570 630 665 684 798 853 855 1140 1197 1260 1330 1596 1706 1710 1995 2394 2559 2660 3412 3420 3990 4265 4788 5118 5971 5985 7677 7980 8530 10236 11942 11970 12795 15354 16207 17060 17913 23884 23940 25590 29855 30708 32414 35826 38385 48621 51180 53739 59710 64828 71652 76770 81035 89565 97242 107478 113449 119420 145863 153540 162070 179130 194484 214956 226898 243105 268695 291726 324140 340347 358260 453796 486210 537390 567245 583452 680694 729315 972420 1021041 1074780 1134490 1361388 1458630 1701735 2042082 2268980 2917260 3403470 4084164 5105205 6806940 10210410 20420820
- Sum of all divisors σ(n): 74605440
- Sum of proper divisors (its aliquot sum) s(n): 54184620
- 20420820 is an abundant number, because the sum of its proper divisors (54184620) is greater than itself. Its abundance is 33763800
Bases of 20420820
- Binary: 10011011110011000110101002
- Hexadecimal: 0x13798D4
- Base-36: C5OT0
Squares and roots of 20420820
- 20420820 squared (204208202) is 417009889472400
- 20420820 cubed (204208203) is 8515683891135775368000
-
The
square root of 20420820 is 4518.9401412279 -
The
cube root of 20420820 is 273.3323649909
Scales and comparisons
How big is 20420820?- 20,420,820 seconds is equal to 33 weeks, 5 days, 8 hours, 27 minutes.
-
To count from 1 to 20,420,820 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 20420820 cubic inches would be around 22.8 feet tall.
Recreational maths with 20420820
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The information we have on file for 20420820 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!
Keywords: Divisors of 20420820, math, Factors of 20420820, curriculum, school, college, exams, university, Prime factorization of 20420820, STEM, science, technology, engineering, physics, economics, calculator, twenty million, four hundred twenty thousand, eight hundred twenty.