20813537940
20,813,537,940 is an even composite number composed of seven prime numbers multiplied together.
20813537940 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 20813537940:
22 × 3 × 5 × 13 × 61 × 67 × 6529
(2 × 2 × 3 × 5 × 13 × 61 × 67 × 6529)See below for interesting mathematical facts about the number 20813537940 from the Numbermatics database.
Names of 20813537940
- Cardinal: 20813537940 can be written as Twenty billion, eight hundred thirteen million, five hundred thirty-seven thousand, nine hundred forty.
Scientific notation
- Scientific notation: 2.081353794 × 1010
Factors of 20813537940
Divisors of 20813537940
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 61 65 67 78 122 130 134 156 183 195 201 244 260 268 305 335 366 390 402 610 670 732 780 793 804 871 915 1005 1220 1340 1586 1742 1830 2010 2379 2613 3172 3484 3660 3965 4020 4087 4355 4758 5226 6529 7930 8174 8710 9516 10452 11895 12261 13058 13065 15860 16348 17420 19587 20435 23790 24522 26116 26130 32645 39174 40870 47580 49044 52260 53131 61305 65290 78348 81740 84877 97935 106262 122610 130580 159393 169754 195870 212524 245220 254631 265655 318786 339508 391740 398269 424385 437443 509262 531310 637572 796538 796965 848770 874886 1018524 1062620 1194807 1273155 1312329 1593076 1593930 1697540 1749772 1991345 2187215 2389614 2546310 2624658 3187860 3982690 4374430 4779228 5092620 5177497 5249316 5686759 5974035 6561645 7965380 8748860 10354994 11373518 11948070 13123290 15532491 17060277 20709988 22747036 23896140 25887485 26246580 26684023 28433795 31064982 34120554 51774970 53368046 56867590 62129964 68241108 77662455 80052069 85301385 103549940 106736092 113735180 133420115 155324910 160104138 170602770 266840230 310649820 320208276 341205540 346892299 400260345 533680460 693784598 800520690 1040676897 1387569196 1601041380 1734461495 2081353794 3468922990 4162707588 5203384485 6937845980 10406768970 20813537940
- Sum of all divisors σ(n): 64751688960
- Sum of proper divisors (its aliquot sum) s(n): 43938151020
- 20813537940 is an abundant number, because the sum of its proper divisors (43938151020) is greater than itself. Its abundance is 23124613080
Bases of 20813537940
- Binary: 100110110001001010101100010100101002
- Hexadecimal: 0x4D8956294
- Base-36: 9K7UCNO
Squares and roots of 20813537940
- 20813537940 squared (208135379402) is 433203361579819443600
- 20813537940 cubed (208135379403) is 9016494601977110327718290184000
-
The
square root of 20813537940 is 144268.9777464303 -
The
cube root of 20813537940 is 2750.7342585889
Scales and comparisons
How big is 20813537940?- 20,813,537,940 seconds is equal to 661 years, 41 weeks, 6 days, 10 hours, 19 minutes.
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To count from 1 to 20,813,537,940 would take you about one thousand, three hundred twenty-three years!
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 20813537940 cubic inches would be around 229.2 feet tall.
Recreational maths with 20813537940
- 20813537940 backwards is 04973531802
- The number of decimal digits it has is: 11
- The sum of 20813537940's digits is 42
- More coming soon!
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The information we have on file for 20813537940 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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