20972640
20,972,640 is an even composite number composed of five prime numbers multiplied together.
20972640 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 20972640:
25 × 3 × 5 × 13 × 3361
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 13 × 3361)See below for interesting mathematical facts about the number 20972640 from the Numbermatics database.
Names of 20972640
- Cardinal: 20972640 can be written as Twenty million, nine hundred seventy-two thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.097264 × 107
Factors of 20972640
Divisors of 20972640
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 195 208 240 260 312 390 416 480 520 624 780 1040 1248 1560 2080 3120 3361 6240 6722 10083 13444 16805 20166 26888 33610 40332 43693 50415 53776 67220 80664 87386 100830 107552 131079 134440 161328 174772 201660 218465 262158 268880 322656 349544 403320 436930 524316 537760 655395 699088 806640 873860 1048632 1310790 1398176 1613280 1747720 2097264 2621580 3495440 4194528 5243160 6990880 10486320 20972640
- Sum of all divisors σ(n): 71166816
- Sum of proper divisors (its aliquot sum) s(n): 50194176
- 20972640 is an abundant number, because the sum of its proper divisors (50194176) is greater than itself. Its abundance is 29221536
Bases of 20972640
- Binary: 10100000000000100011000002
- Hexadecimal: 0x1400460
- Base-36: CHILC
Squares and roots of 20972640
- 20972640 squared (209726402) is 439851628569600
- 20972640 cubed (209726403) is 9224849859403935744000
-
The
square root of 20972640 is 4579.5895012545 -
The
cube root of 20972640 is 275.7725494303
Scales and comparisons
How big is 20972640?- 20,972,640 seconds is equal to 34 weeks, 4 days, 17 hours, 44 minutes.
-
To count from 1 to 20,972,640 would take you about two hours!
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 20972640 cubic inches would be around 23 feet tall.
Recreational maths with 20972640
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The information we have on file for 20972640 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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