21428720561272024

Names of 21428720561272024

• Cardinal: 21428720561272024 can be written as Twenty-one quadrillion, four hundred twenty-eight trillion, seven hundred twenty billion, five hundred sixty-one million, two hundred seventy-two thousand and twenty-four.

Scientific notation

• Scientific notation: 2.1428720561272024 × 10¹⁶

Factors of 21428720561272024

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 15997

Divisors of 21428720561272024

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 7 8 11 13 14 17 22 26 28 34 44 52 56 68 77 88 91 104 119 121 136 143 154 182 187 221 238 242 286 308 364 374 442 476 484 572 616 728 748 847 884 941 952 968 1001 1093 1144 1309 1496 1547 1573 1694 1768 1882 2002 2057 2186 2431 2618 3094 3146 3388 3764 4004 4114 4372 4862 5236 6188 6292 6587 6776 7528 7651 8008 8228 8744 9724 10351 10472 11011 12023 12233 12376 12584 13174 13913 14209 14399 15302 15997 16456 17017 18581 19448 20702 22022 24046 24466 26348 26741 27826 28418 28798 30604 31994 34034 37162 41404 44044 48092 48932 52696 53482 55652 56836 57596 61208 63988 68068 72457 74324 82808 84161 85631 88088 96184 97391 97864 99463 106964 111304 111979 113672 113861 115192 127976 130067 132253 134563 136136 144914 148648 153043 156299 168322 171262 175967 180869 187187 194782 198926 204391 207961 213928 223958 227722 236521 241553 260134 264506 269126 289828 306086 312598 336644 342524 351934 361738 374374 389564 397852 408782 415922 447916 455444 473042 483106 520268 529012 538252 579656 612172 625196 673288 685048 703868 723476 748748 779128 795704 797027 817564 831844 895832 910888 925771 941941 946084 966212 1028513 1040536 1058024 1071301 1076504 1094093 1224344 1231769 1250392 1266083 1407736 1430737 1446952 1455727 1480193 1497496 1594054 1635128 1655647 1663688 1683473 1690871 1719289 1851542 1883882 1892168 1932424 1935637 1989559 2057026 2142602 2188186 2248301 2287571 2463538 2532166 2601731 2657083 2861474 2911454 2960386 3074773 3188108 3311294 3366946 3381742 3438578 3703084 3767764 3871274 3979118 4114052 4285204 4376372 4496602 4575142 4927076 5064332 5203462 5314166 5722948 5822908 5920772 6149546 6376216 6622588 6733892 6763484 6877156 7199591 7406168 7535528 7742548 7958236 8228104 8570408 8752744 8993204 9150284 9854152 10128664 10361351 10406924 10628332 11313643 11445896 11645816 11784311 11841544 12035023 12299092 13092133 13245176 13370669 13467784 13526968 13549459 13754312 13926913 14399182 15206909 15485096 15738107 15916472 16012997 17484721 17986408 18212117 18300568 18599581 20722702 20813848 21256664 21523411 21885149 22627286 23568622 24070046 24598184 25163281 26184266 26741338 27098918 27853826 28619041 28798364 29227913 30413818 31476214 32025994 33822503 34969442 36424234 37199162 41445404 43046822 43770298 45254572 47137244 48140092 50326562 52368532 53482676 54197836 55707652 57238082 57596728 58455826 60827636 62952428 64051988 67645006 69938884 72848468 74398324 79195501 82890808 86093644 87540596 90509144 91644931 93594683 94274488 96280184 100653124 104737064 106448363 106965352 108395672 111415304 114476164 116911652 121655272 122393047 124450073 125904856 128103976 135290012 139877768 144013463 145696936 147077359 148796648 153196043 158391002 167275999 170197729 172187288 175081192 176142967 183289862 187189366 192331931 197689817 200333287 201306248 204595391 212896726 222566261 227301373 228952328 233823304 236757521 244786094 248900146 258517453 270580024 288026926 294154718 306392086 316782004 334551998 340395458 352285934 366579724 372047533 374378732 384663862 395379634 400666574 409190782 425793452 445132522 454602746 473515042 489572188 497800292 517034906 576053852 588309436 612784172 633564008 669103996 680790916 704571868 733159448 744095066 748757464 769327724 790759268 801333148 818381564 851586904 871150511 890265044 909205492 947030084 979144376 995600584 1008094241 1029541513 1034069812 1152107704 1170931993 1176618872 1191384103 1225568344 1338207992 1346323517 1361581832 1383828719 1409143736 1488190132 1538655448 1557963827 1581518536 1584148093 1591109611 1602666296 1617850949 1636763128 1742301022 1780530088 1809622171 1818410984 1840035989 1872175019 1894060168 2016188482 2059083026 2068139624 2115651241 2174587987 2341863986 2382768206 2448228871 2500315103 2604332731 2692647034 2767657438 2843691983 2893361393 2976380264 3115927654 3168296186 3182219222 3235701898 3360726889 3484602044 3619244342 3680071978 3744350038 4032376964 4118166052 4231302482 4349175974 4683727972 4765536412 4896457742 5000630206 5208665462 5385294068 5535314876 5687383966 5786722786 6231855308 6336592372 6364438444 6471403796 6721453778 6969204088 7238488684 7360143956 7488700076 8064753928 8236332104 8462604964 8698351948 9367455944 9531072824 9792915484 10001260412 10417330924 10770588136 11070629752 11089036651 11324956643 11374767932 11573445572 12463710616 12673184744 12728876888 12880251923 12942807592 13105225133 13442907556 14309701369 14476977368 14720287912 14809558687 14977400152 15222115909 16925209928 17137602097 17396703896 17502205721 19585830968 19905843881 20002520824 20253529751 20593925209 20834661848 22178073302 22649913286 22749535864 23146891144 23525088223 23920467857 25760503846 26210450266 26885815112 26930517581 27503466133 28619402738 29619117374 30444231818 31280611813 31826975323 34275204194 35004411442 36967995779 39811687762 40507059502 41187850418 44356146604 45299826572 47050176446 47840935714 51521007692 52420900532 53861035162 55006932266 57238805476 59238234748 60888463636 62561223626 63653950646 68550408388 70008822884 73935991558 79623375524 81014119004 82375700836 88712293208 90599653144 94100352892 95681871428 100167909583 103042015384 104841801064 107722070324 110013864532 114477610952 118476469496 121776927272 125122447252 127307901292 137100816776 140017645768 144157476463 147871983116 157406715059 159246751048 162028238008 164751401672 167443274999 186026117797 188200705784 188513623067 191363742856 192524262931 200335819166 215444140648 218964282691 220027729064 222788827261 243264923273 250244894504 254615802584 258775970453 288314952926 295743966232 314813430118 334886549998 350096728553 372052235594 377027246134 385048525862 400671638332 406647953569 437928565382 445577654522 486529846546 517551940906 576629905852 629626860236 669773099996 700193457106 744104471188 754054492268 770097051724 801343276664 813295907138 875857130764 891155309044 973059693092 1035103881812 1101847005413 1153259811704 1259253720472 1302182824579 1339546199992 1400386914212 1488208942376 1508108984536 1540194103448 1626591814276 1702854462911 1731473865649 1751714261528 1782310618088 1946119386184 2046287295767 2070207763624 2203694010826 2450677099871 2604365649158 2675914156003 2800773828424 2846535674983 3162444002549 3253183628552 3405708925822 3462947731298 4092574591534 4407388021652 4901354199742 5208731298316 5351828312006 5693071349966 6324888005098 6811417851644 6925895462596 8185149183068 8814776043304 9802708399484 10417462596632 10703656624012 11386142699932 12120317059543 12649776010196 13622835703288 13851790925192 14324011070369 16370298366136 18731399092021 19605416798968 21407313248024 22137108017843 22509160253437 22772285399864 24240634119086 25299552020392 28648022140738 29435055716033 34786884028039 37462798184042 44274216035686 45018320506874 48481268238172 57296044281476 58870111432066 69573768056078 74925596368084 88548432071372 90036641013748 96962536476344 114592088562952 117740222864132 139147536112156 149851192736168 157564121774059 177096864142744 180073282027496 206045390012231 235480445728264 243508188196273 278295072224312 315128243548118 382655724308429 412090780024462 487016376392546 630256487096236 765311448616858 824181560048924 974032752785092 1260512974192472 1530622897233716 1648363120097848 1948065505570184 2678590070159003 3061245794467432 5357180140318006 10714360280636012 21428720561272024
• Sum of all divisors σ(n): 57670491351594240
• Sum of proper divisors (its aliquot sum) s(n): 36241770790322216
• 21428720561272024 is an abundant number, because the sum of its proper divisors (36241770790322216) is greater than itself. Its abundance is 14813050229050192

Bases of 21428720561272024

• Binary: 1001100001000010100111011001101000010111011010011011000₂
• Hexadecimal: 0x4C214ECD0BB4D8
• Base-36: 5UZUIBP0FRS

Squares and roots of 21428720561272024

• 21428720561272024 squared (21428720561272024²) is 459190064893082407284844925056576
• 21428720561272024 cubed (21428720561272024³) is 9839855585106229965864608478015606875352726029824
• The square root of 21428720561272024 is 146385520.3265405755
• The cube root of 21428720561272024 is 277757.2564938745

Scales and comparisons

• 21,428,720,561,272,024 seconds is equal to 681,367,030 years, 24 weeks, 19 hours, 7 minutes, 4 seconds.
• To count from 1 to 21,428,720,561,272,024 would take you about two billion, forty-four million, one hundred one thousand and ninety-one 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 21428720561272024 cubic inches would be around 23146.4 feet tall.

Recreational maths with 21428720561272024

• 21428720561272024 backwards is 42027216502782412
• The number of decimal digits it has is: 17
• The sum of 21428720561272024's digits is 55
• More coming soon!