20988540
20,988,540 is an even composite number composed of five prime numbers multiplied together.
20988540 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 20988540:
22 × 32 × 5 × 17 × 193
(2 × 2 × 3 × 3 × 5 × 17 × 19 × 19 × 19)See below for interesting mathematical facts about the number 20988540 from the Numbermatics database.
Names of 20988540
- Cardinal: 20988540 can be written as Twenty million, nine hundred eighty-eight thousand, five hundred forty.
Scientific notation
- Scientific notation: 2.098854 × 107
Factors of 20988540
Divisors of 20988540
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 17 18 19 20 30 34 36 38 45 51 57 60 68 76 85 90 95 102 114 153 170 171 180 190 204 228 255 285 306 323 340 342 361 380 510 570 612 646 684 722 765 855 969 1020 1083 1140 1292 1444 1530 1615 1710 1805 1938 2166 2907 3060 3230 3249 3420 3610 3876 4332 4845 5415 5814 6137 6460 6498 6859 7220 9690 10830 11628 12274 12996 13718 14535 16245 18411 19380 20577 21660 24548 27436 29070 30685 32490 34295 36822 41154 55233 58140 61370 61731 64980 68590 73644 82308 92055 102885 110466 116603 122740 123462 137180 184110 205770 220932 233206 246924 276165 308655 349809 368220 411540 466412 552330 583015 617310 699618 1049427 1104660 1166030 1234620 1399236 1749045 2098854 2332060 3498090 4197708 5247135 6996180 10494270 20988540
- Sum of all divisors σ(n): 71154720
- Sum of proper divisors (its aliquot sum) s(n): 50166180
- 20988540 is an abundant number, because the sum of its proper divisors (50166180) is greater than itself. Its abundance is 29177640
Bases of 20988540
- Binary: 10100000001000010011111002
- Hexadecimal: 0x140427C
- Base-36: CHUV0
Squares and roots of 20988540
- 20988540 squared (209885402) is 440518811331600
- 20988540 cubed (209885403) is 9245846692385739864000
-
The
square root of 20988540 is 4581.3251358095 -
The
cube root of 20988540 is 275.8422223617
Scales and comparisons
How big is 20988540?- 20,988,540 seconds is equal to 34 weeks, 4 days, 22 hours, 9 minutes.
-
To count from 1 to 20,988,540 would take you about nine 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 20988540 cubic inches would be around 23 feet tall.
Recreational maths with 20988540
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The information we have on file for 20988540 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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