21307855515870

Names of 21307855515870

• Cardinal: 21307855515870 can be written as Twenty-one trillion, three hundred seven billion, eight hundred fifty-five million, five hundred fifteen thousand, eight hundred seventy.

Scientific notation

• Scientific notation: 2.130785551587 × 10¹³

Factors of 21307855515870

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 92

Divisors of 21307855515870

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 5 6 7 10 11 14 15 21 22 23 30 33 35 41 42 46 55 66 69 70 77 82 105 110 115 121 123 138 154 161 165 205 210 230 231 242 246 253 287 322 330 345 363 385 410 451 462 483 506 529 574 605 615 690 726 759 770 805 847 861 902 943 966 1058 1155 1210 1230 1265 1353 1435 1518 1587 1610 1681 1694 1722 1771 1815 1886 2255 2310 2415 2530 2541 2645 2706 2783 2829 2870 3157 3174 3362 3542 3630 3703 3795 4235 4305 4510 4715 4830 4961 5043 5082 5290 5313 5566 5658 5819 6314 6601 6765 7406 7590 7935 8349 8405 8470 8610 8855 9430 9471 9922 10086 10373 10626 11109 11638 11767 12167 12705 13202 13530 13915 14145 14883 15785 15870 16698 16810 17457 17710 18491 18515 18942 19481 19803 20746 21689 22218 23534 24334 24805 25215 25410 26565 27830 28290 29095 29766 31119 31570 33005 34727 34914 35301 36501 36982 37030 38663 38962 39606 40733 41745 43378 47355 49610 50430 51865 53130 55473 55545 58190 58443 58835 60835 62238 64009 65067 66010 68921 69454 70602 72611 73002 74415 77326 81466 83490 85169 87285 92455 94710 97405 99015 103730 104181 108445 110946 111090 114103 115989 116886 117670 121670 122199 128018 129437 130134 133837 137842 145222 148830 151823 155595 170338 173635 174570 176505 182505 184910 192027 193315 194810 198030 203401 203665 206763 208362 216890 217833 228206 231978 238579 244398 255507 258874 267674 270641 277365 292215 303646 311190 320045 325335 342309 344605 347270 353010 363055 365010 384054 386630 388311 401511 406802 407330 413526 425293 425845 435666 448063 455469 477158 482447 498847 511014 520905 541282 554730 570515 579945 584430 610203 610995 640090 647185 650670 669185 684618 689210 715737 726110 758131 759115 776622 798721 803022 811923 850586 851690 889249 896126 910938 936859 960135 964894 997694 1017005 1033815 1041810 1089165 1141030 1159890 1192895 1220406 1221990 1275879 1277535 1294370 1338370 1344189 1353205 1423807 1431474 1447341 1472207 1496541 1516262 1518230 1585183 1597442 1623846 1670053 1711545 1778498 1873718 1920270 1941555 2007555 2034010 2067630 2126465 2178330 2240315 2274393 2277345 2385790 2396163 2412235 2494235 2551758 2555070 2624369 2667747 2688378 2706410 2810577 2847614 2894682 2944414 2977051 2993082 3051015 3170366 3340106 3423090 3491929 3578685 3790655 3883110 3993605 4015110 4059615 4252930 4271421 4416621 4446245 4480630 4548786 4554690 4678223 4684295 4755549 4792326 4824470 4988470 5010159 5248738 5306917 5335494 5487317 5621154 5954102 6102030 6224743 6379395 6720945 6983858 7119035 7157370 7236705 7361035 7482705 7581310 7873107 7925915 7987210 8119230 8339441 8350265 8542842 8833242 8892490 8931153 9356446 9368590 9511098 9781739 10020318 10305449 10475787 10613834 10974634 11096281 11371965 11980815 12449486 12758790 13121845 13338735 13441890 14034669 14052885 14238070 14473410 14722070 14885255 14965410 15746214 15851830 15920751 16461951 16678882 16700530 17437013 17459645 17862306 18370583 18674229 19563478 20452727 20610898 20951574 21357105 22083105 22192562 22743930 23391115 23777745 23961630 25018323 25050795 26243690 26534585 26677470 27436585 28069338 28105770 29345217 29770510 30916347 31123715 31841502 32747561 32923902 33288843 34874026 34919290 36459209 36741166 37348458 38411219 39365535 40905454 41697205 42714210 44166210 44655765 46782230 47555490 48908695 50036646 50101590 51527245 52311039 52378935 53069170 54873170 55111749 55481405 58376087 58690434 60360487 61358181 61832694 62247430 65495122 66577686 68472173 70173345 72918418 76822438 78731070 79603755 82309755 83394410 87185065 89311530 91852915 93371145 97817390 98242683 102263635 103054490 104622078 104757870 107599129 109377627 110223498 110962810 115233657 116752174 120720974 122059091 122716362 125091615 136944346 140346690 143169089 146726085 154581735 159207510 163737805 164619510 166444215 174370130 175128261 181081461 182296045 183705830 186742290 191807143 192056095 196485366 204527270 205416519 215198258 218755254 224979997 230467314 244118182 250183230 255214463 261555195 275558745 286338178 291880435 293452170 301802435 306790905 309163470 322797387 327475610 332888430 342360865 350256522 362162922 364592090 366177273 383614286 384112190 401051299 410833038 422523409 429507267 449959994 491213415 510428926 523110390 537995645 546888135 551117490 575421429 576168285 583760870 603604870 610295455 613581810 645594774 674939991 684721730 715845445 732354546 753193903 765643389 802102598 838561807 845046818 859014534 875641305 905407305 959035715 982426830 1027082595 1075991290 1093776270 1124899985 1150842858 1152336570 1203153897 1220590910 1267570227 1276072315 1342650001 1349879982 1431690890 1506387806 1531286778 1574859979 1613986935 1677123614 1751282610 1810814610 1830886365 1918071430 2005256495 2054165190 2112617045 2147536335 2249799970 2259581709 2406307794 2474779967 2515685421 2535140454 2552144630 2685300002 2807359093 2877107145 3149719958 3227973870 3374699955 3661772730 3765969515 3828216945 4010512990 4027950003 4192809035 4225234090 4295072670 4411564289 4519163418 4724579937 4949559934 5031370842 5614718186 5754214290 5869932649 6015769485 6337851135 6713250005 6749399910 7424339901 7531939030 7656433890 7874299895 8055900006 8385618070 8422077279 8823128578 9224179877 9449159874 11297908545 11739865298 12031538970 12373899835 12578427105 12675702270 13234692867 13426500010 14036795465 14848679802 15748599790 16844154558 17323459769 17609797947 18448359754 20139750015 22057821445 22595817090 23622899685 24747799670 25156854210 26469385734 27672539631 28073590930 29349663245 30880950023 34646919538 35219595894 37121699505 40279500030 42110386395 44115642890 46120899385 47245799370 51970379307 55345079262 58699326490 61761900046 64569259139 66173464335 74243399010 84220772790 86617298845 88048989735 92241798770 92642850069 101465978647 103940758614 129138518278 132346928670 138362698155 154404750115 173234597690 176097979470 185285700138 193707777417 202931957294 259851896535 276725396310 304397935941 308809500230 322846295695 387415554834 463214250345 507329893235 519703793070 608795871882 645692591390 710261850529 926428500690 968538887085 1014659786470 1420523701058 1521989679705 1937077774170 2130785551587 3043979359410 3551309252645 4261571103174 7102618505290 10653927757935 21307855515870
• Sum of all divisors σ(n): 68839311421440
• Sum of proper divisors (its aliquot sum) s(n): 47531455905570
• 21307855515870 is an abundant number, because the sum of its proper divisors (47531455905570) is greater than itself. Its abundance is 26223600389700

Bases of 21307855515870

• Binary: 100110110000100011111001010001011000011011110₂
• Hexadecimal: 0x13611F28B0DE
• Base-36: 7JWOZ0S0U

Squares and roots of 21307855515870

• 21307855515870 squared (21307855515870²) is 454024706685191583821856900
• 21307855515870 cubed (21307855515870³) is 9674292850683318352986255002130819003000
• The square root of 21307855515870 is 4616043.2749130507
• The cube root of 21307855515870 is 27723.4057433619

Scales and comparisons

• 21,307,855,515,870 seconds is equal to 677,523 years, 46 weeks, 4 days, 2 hours, 24 minutes, 30 seconds.
• To count from 1 to 21,307,855,515,870 would take you about one million, six hundred ninety-three thousand, eight hundred nine 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 21307855515870 cubic inches would be around 2310.3 feet tall.

Recreational maths with 21307855515870

• 21307855515870 backwards is 07851555870312
• The number of decimal digits it has is: 14
• The sum of 21307855515870's digits is 57
• More coming soon!