20720789856
20,720,789,856 is an even composite number composed of five prime numbers multiplied together.
20720789856 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty-four divisors.
Prime factorization of 20720789856:
25 × 32 × 132 × 312 × 443
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 13 × 13 × 31 × 31 × 443)See below for interesting mathematical facts about the number 20720789856 from the Numbermatics database.
Names of 20720789856
- Cardinal: 20720789856 can be written as Twenty billion, seven hundred twenty million, seven hundred eighty-nine thousand, eight hundred fifty-six.
Scientific notation
- Scientific notation: 2.0720789856 × 1010
Factors of 20720789856
Divisors of 20720789856
- Number of divisors d(n): 324
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Complete list of divisors:
1 2 3 4 6 8 9 12 13 16 18 24 26 31 32 36 39 48 52 62 72 78 93 96 104 117 124 144 156 169 186 208 234 248 279 288 312 338 372 403 416 443 468 496 507 558 624 676 744 806 886 936 961 992 1014 1116 1209 1248 1329 1352 1488 1521 1612 1772 1872 1922 2028 2232 2418 2658 2704 2883 2976 3042 3224 3544 3627 3744 3844 3987 4056 4464 4836 5239 5316 5408 5759 5766 6084 6448 7088 7254 7688 7974 8112 8649 8928 9672 10478 10632 11518 11532 12168 12493 12896 13733 14176 14508 15376 15717 15948 16224 17277 17298 19344 20956 21264 23036 23064 24336 24986 27466 29016 30752 31434 31896 34554 34596 37479 38688 41199 41912 42528 46072 46128 47151 48672 49972 51831 54932 58032 62868 63792 69108 69192 74867 74958 82398 83824 92144 92256 94302 99944 103662 109864 112437 116064 123597 125736 127584 138216 138384 149734 149916 162409 164796 167648 178529 184288 188604 199888 207324 219728 224601 224874 247194 251472 276432 276768 299468 299832 324818 329592 357058 377208 399776 414648 425723 439456 449202 449748 487227 494388 502944 535587 552864 598936 599664 649636 659184 673803 714116 754416 829296 851446 898404 899496 974454 988776 1071174 1197872 1199328 1277169 1299272 1318368 1347606 1428232 1461681 1508832 1606761 1658592 1702892 1796808 1798992 1948908 1977552 2142348 2320877 2395744 2554338 2598544 2695212 2856464 2923362 3213522 3405784 3593616 3597984 3831507 3897816 3955104 4284696 4641754 5108676 5197088 5390424 5534399 5712928 5846724 6427044 6811568 6962631 7187232 7663014 7795632 8569392 9283508 10217352 10780848 11068798 11693448 12854088 13623136 13925262 15326028 15591264 16603197 17138784 18567016 20434704 20887893 21561696 22137596 23386896 25708176 27850524 30652056 33206394 37134032 40869408 41775786 44275192 46773792 49809591 51416352 55701048 61304112 66412788 71947187 74268064 83551572 88550384 99619182 111402096 122608224 132825576 143894374 167103144 177100768 199238364 215841561 222804192 265651152 287788748 334206288 398476728 431683122 531302304 575577496 647524683 668412576 796953456 863366244 1151154992 1295049366 1593906912 1726732488 2302309984 2590098732 3453464976 5180197464 6906929952 10360394928 20720789856
- Sum of all divisors σ(n): 66079570284
- Sum of proper divisors (its aliquot sum) s(n): 45358780428
- 20720789856 is an abundant number, because the sum of its proper divisors (45358780428) is greater than itself. Its abundance is 24637990572
Bases of 20720789856
- Binary: 100110100110000111000101001011000002
- Hexadecimal: 0x4D30E2960
- Base-36: 9IOMFS0
Squares and roots of 20720789856
- 20720789856 squared (207207898562) is 429351132256512500736
- 20720789856 cubed (207207898563) is 8896494585922858615187701334016
-
The
square root of 20720789856 is 143947.1773116791 -
The
cube root of 20720789856 is 2746.6422867831
Scales and comparisons
How big is 20720789856?- 20,720,789,856 seconds is equal to 658 years, 44 weeks, 3 days, 22 hours, 57 minutes, 36 seconds.
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To count from 1 to 20,720,789,856 would take you about one thousand, three hundred seventeen 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 20720789856 cubic inches would be around 228.9 feet tall.
Recreational maths with 20720789856
- 20720789856 backwards is 65898702702
- The number of decimal digits it has is: 11
- The sum of 20720789856's digits is 54
- More coming soon!
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