21047289420465

Names of 21047289420465

• Cardinal: 21047289420465 can be written as Twenty-one trillion, forty-seven billion, two hundred eighty-nine million, four hundred twenty thousand, four hundred sixty-five.

Scientific notation

• Scientific notation: 2.1047289420465 × 10¹³

Factors of 21047289420465

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 364

Divisors of 21047289420465

• Number of divisors d(n): 648
• Complete list of divisors:
  1 3 5 7 9 11 15 21 27 31 33 35 45 49 55 63 77 81 93 99 105 121 135 147 155 165 189 217 231 243 245 279 297 307 315 341 363 385 405 441 465 495 539 567 605 651 693 735 837 847 891 921 945 1023 1085 1089 1155 1215 1323 1395 1485 1519 1535 1617 1701 1705 1815 1953 2079 2149 2205 2387 2511 2541 2673 2695 2763 2835 3069 3255 3267 3377 3465 3751 3969 4185 4235 4455 4557 4605 4851 5115 5445 5859 5929 6237 6447 6615 7161 7533 7595 7623 8085 8289 8505 9207 9517 9765 9801 10131 10395 10745 11253 11907 11935 12555 12705 13365 13671 13815 14553 15043 15345 16335 16709 16885 17577 17787 18711 18755 19341 19845 21483 22785 22869 23639 24255 24867 26257 27621 28551 29295 29403 29645 30393 31185 32235 33759 35805 37147 37665 38115 41013 41445 43659 45129 46035 47585 49005 50127 50655 52731 53361 56265 58023 59535 64449 66619 68355 68607 70917 72765 74601 75215 78771 82863 83545 85653 87885 88935 91179 93555 94249 96705 101277 104687 107415 111441 114345 118195 123039 124335 130977 131285 135387 138105 142755 147015 150381 151965 160083 165473 168795 174069 183799 185735 193347 199857 205065 205821 212751 218295 225645 236313 250635 256959 260029 263655 266805 273537 282747 290115 303831 314061 322245 333095 334323 343035 354585 369117 373005 393855 406161 414315 428265 451143 455895 466333 471245 480249 496419 506385 522207 523435 551397 557205 580041 599571 615195 638253 654885 659743 676935 708939 732809 751905 770877 780087 800415 820611 827365 848241 870345 911493 918995 942183 966735 999285 1002969 1029105 1036739 1063755 1151557 1181565 1218483 1284795 1300145 1353429 1367685 1398999 1413735 1440747 1489257 1519155 1570305 1654191 1671615 1798713 1820203 1845585 1914759 1979229 2030805 2126817 2198427 2255715 2312631 2331665 2340261 2401245 2482095 2544723 2611035 2756985 2826549 2900205 2921719 2997855 3008907 3110217 3191265 3298715 3454671 3544695 3655449 3664045 3854385 3900435 4060287 4103055 4196997 4241205 4467771 4557465 4618201 4710915 4962573 5014845 5129663 5183695 5396139 5460609 5744277 5757785 5937687 6092415 6380451 6595281 6767145 6994995 7020783 7203735 7257173 7446285 7634169 8060899 8270955 8479647 8765157 8993565 9026721 9101015 9330651 9573795 9896145 10364013 10634085 10992135 11404129 11563155 11701305 12590991 12723615 13403313 13854603 14132745 14608595 14887719 15044535 15388989 15551085 16188417 16381827 17273355 17813061 18277245 19785843 20301435 20452033 20984985 21062349 21771519 22338855 22902507 23091005 24182697 24812865 25438941 25648315 26295471 26980695 27303045 27991953 28721385 29688435 31092039 31902255 32138909 32976405 34212387 35103915 36285865 37772973 38170845 40209939 40304495 41563809 42398235 43825785 44663157 45133605 46166967 46653255 49145481 50800211 51820065 53439183 56426293 57020645 59357529 61356099 62954955 63187047 65314557 67016565 69273015 72548091 74438595 76944945 78886413 79828903 80942085 81909135 83975859 89065305 93276117 96416727 98929215 102260165 102637161 105311745 108857595 113318919 114512535 120913485 124691427 127194705 131477355 138500901 139959765 143164231 147436443 152400633 155460195 160317549 160694545 169278879 171061935 178072587 184068297 188864865 195943671 201049695 207819045 217644273 223315785 224972363 230834835 236659239 239486709 245727405 251927577 254001055 267195915 279828351 282131465 289250181 296787645 306780495 307911483 315935235 326572785 353527999 362740455 374074281 394432065 399144515 415502703 419879295 429492693 442309329 457201899 466380585 482083635 507836637 513185805 552204891 558802321 566594595 587831013 623457135 652932819 674917089 692504505 709977717 715821155 718460127 737182215 762003165 801587745 846394395 867750543 890362935 920341485 923734449 979718355 1060583997 1088221365 1122222843 1124861815 1183296195 1197433545 1246508109 1259637885 1288478079 1371605697 1399141755 1446250905 1523509911 1539557415 1574806541 1656614673 1676406963 1763493039 1767639995 1870371405 1958798457 2024751267 2077513515 2147463465 2155380381 2211546645 2286009495 2474695993 2539183185 2603251629 2761024455 2771203347 2794011605 2939155065 3181751991 3264664095 3374585445 3549888585 3592300635 3865434237 4114817091 4338752715 4570529733 4618672245 4724419623 4969844019 5029220889 5302919985 5611114215 6074253801 6232540545 6442390395 6466141143 6858028485 7424087979 7617549555 7809754887 7874032705 8283073365 8382034815 8817465195 9545255973 9793992285 10123756335 10776901905 11596302711 12344451273 12373479965 13016258145 13711589199 13856016735 14173258869 15087662667 15908759955 17322871951 18222761403 19327171185 19398423429 20574085455 22272263937 22852648665 23622098115 24849220095 25146104445 28635767919 30371269005 32330705715 34788908133 37120439895 39048774435 42519776607 45262988001 47726279865 51968615853 54668284209 57981513555 61722256365 66816791811 68557945995 70866294345 75438313335 85907303757 86614359755 91113807015 96992117145 111361319685 127559329821 135788964003 143178839595 155905847559 173944540665 200450375433 212598883035 226314940005 259843079265 273341421045 334083959055 382677989463 429536518785 467717542677 601351126299 637796649105 678944820015 779529237795 1002251877165 1403152628031 1913389947315 2338587713385 3006755631495 4209457884093 7015763140155 21047289420465
• Sum of all divisors σ(n): 50098277488896
• Sum of proper divisors (its aliquot sum) s(n): 29050988068431
• 21047289420465 is an abundant number, because the sum of its proper divisors (29050988068431) is greater than itself. Its abundance is 8003698647966

Bases of 21047289420465

• Binary: 100110010010001110100001101011001101010110001₂
• Hexadecimal: 0x132474359AB1
• Base-36: 7GKZOP229

Squares and roots of 21047289420465

• 21047289420465 squared (21047289420465²) is 442988391948817915560816225
• 21047289420465 cubed (21047289420465³) is 9323704895253158097945821029742619044625
• The square root of 21047289420465 is 4587732.4922520275
• The cube root of 21047289420465 is 27609.9354328845

Scales and comparisons

• 21,047,289,420,465 seconds is equal to 669,238 years, 36 weeks, 2 days, 19 hours, 27 minutes, 45 seconds.
• To count from 1 to 21,047,289,420,465 would take you about one million, six hundred seventy-three thousand and ninety-six 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 21047289420465 cubic inches would be around 2300.8 feet tall.

Recreational maths with 21047289420465

• 21047289420465 backwards is 56402498274012
• The number of decimal digits it has is: 14
• The sum of 21047289420465's digits is 54
• More coming soon!