21521050390728
21,521,050,390,728 is an even composite number composed of seven prime numbers multiplied together.
21521050390728 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21521050390728:
23 × 32 × 7 × 89 × 181 × 683 × 3881
(2 × 2 × 2 × 3 × 3 × 7 × 89 × 181 × 683 × 3881)See below for interesting mathematical facts about the number 21521050390728 from the Numbermatics database.
Names of 21521050390728
- Cardinal: 21521050390728 can be written as Twenty-one trillion, five hundred twenty-one billion, fifty million, three hundred ninety thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1521050390728 × 1013
Factors of 21521050390728
Divisors of 21521050390728
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 89 126 168 178 181 252 267 356 362 504 534 543 623 683 712 724 801 1068 1086 1246 1267 1366 1448 1602 1629 1869 2049 2136 2172 2492 2534 2732 3204 3258 3738 3801 3881 4098 4344 4781 4984 5068 5464 5607 6147 6408 6516 7476 7602 7762 8196 9562 10136 11214 11403 11643 12294 13032 14343 14952 15204 15524 16109 16392 19124 22428 22806 23286 24588 27167 28686 30408 31048 32218 34929 38248 43029 44856 45612 46572 48327 49176 54334 57372 60787 64436 69858 81501 86058 91224 93144 96654 108668 112763 114744 121574 123623 128872 139716 144981 163002 172116 182361 193308 217336 225526 243148 244503 247246 279432 289962 326004 338289 344232 345409 364722 370869 386616 425509 451052 486296 489006 494492 547083 579924 652008 676578 690818 702461 729444 741738 851018 865361 902104 978012 988984 1014867 1036227 1094166 1112607 1159848 1276527 1353156 1381636 1404922 1458888 1483476 1702036 1730722 1956024 2029734 2072454 2107383 2188332 2225214 2417863 2553054 2596083 2650723 2706312 2763272 2809844 2966952 3108681 3404072 3461444 3829581 4059468 4144908 4214766 4376664 4450428 4835726 4917227 5106108 5192166 5301446 5619688 6217362 6322149 6922888 7253589 7659162 7788249 7952169 8118936 8289816 8429532 8900856 9671452 9834454 10212216 10384332 10602892 11002447 12434724 12644298 14507178 14751681 15318324 15576498 15904338 16859064 18555061 19342904 19668908 20768664 21205784 21760767 22004894 23856507 24869448 25288596 29014356 29503362 30636648 31152996 31808676 33007341 37110122 39337816 43521534 44009788 44255043 47713014 50577192 55665183 58028712 59006724 62305992 62519029 63617352 66014682 74220244 77017129 87043068 88019576 88510086 95426028 99022023 111330366 118013448 125038058 132029364 148440488 154034258 166995549 174086136 177020172 187557087 190852056 198044046 222660732 231051387 235914347 250076116 264058728 308068516 333991098 354040344 375114174 396088092 437633203 445321464 462102774 471828694 479780863 500152232 562671261 616137032 667982196 693154161 707743041 750228348 792176184 875266406 924205548 943657388 959561726 1125342522 1312899609 1335964392 1386308322 1415486082 1439342589 1500456696 1651400429 1750532812 1848411096 1887314776 1919123452 2123229123 2250685044 2625799218 2772616644 2830972164 2878685178 3302800858 3358466041 3501065624 3838246904 3938698827 4246458246 4318027767 4501370088 4954201287 5251598436 5545233288 5661944328 5757370356 6605601716 6716932082 7877397654 8492916492 8636055534 9908402574 10075398123 10503196872 11514740712 13211203432 13433864164 14862603861 15754795308 16985832984 17272111068 19816805148 20150796246 26867728328 29725207722 30226194369 31509590616 34544222136 39633610296 40301592492 42700496807 59450415444 60452388738 80603184984 85400993614 118900830888 120904777476 128101490421 170801987228 241809554952 256202980842 298903477649 341603974456 384304471263 512405961684 597806955298 768608942526 896710432947 1024811923368 1195613910596 1537217885052 1793420865894 2391227821192 2690131298841 3074435770104 3586841731788 5380262597682 7173683463576 10760525195364 21521050390728
- Sum of all divisors σ(n): 67850043206400
- Sum of proper divisors (its aliquot sum) s(n): 46328992815672
- 21521050390728 is an abundant number, because the sum of its proper divisors (46328992815672) is greater than itself. Its abundance is 24807942424944
Bases of 21521050390728
- Binary: 1001110010010110000101001000001010000110010002
- Hexadecimal: 0x1392C29050C8
- Base-36: 7MMMTQUA0
Squares and roots of 21521050390728
- 21521050390728 squared (215210503907282) is 463155609920253801468369984
- 21521050390728 cubed (215210503907283) is 9967595219842143227011791184296467108352
-
The
square root of 21521050390728 is 4639078.6144155825 -
The
cube root of 21521050390728 is 27815.5608717731
Scales and comparisons
How big is 21521050390728?- 21,521,050,390,728 seconds is equal to 684,302 years, 43 weeks, 2 days, 8 hours, 58 minutes, 48 seconds.
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To count from 1 to 21,521,050,390,728 would take you about one million, seven hundred ten thousand, seven hundred fifty-seven 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 21521050390728 cubic inches would be around 2318 feet tall.
Recreational maths with 21521050390728
- 21521050390728 backwards is 82709305012512
- The number of decimal digits it has is: 14
- The sum of 21521050390728's digits is 45
- More coming soon!
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