21209771805040

Names of 21209771805040

• Cardinal: 21209771805040 can be written as Twenty-one trillion, two hundred nine billion, seven hundred seventy-one million, eight hundred five thousand and forty.

Scientific notation

• Scientific notation: 2.120977180504 × 10¹³

Factors of 21209771805040

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 738

Divisors of 21209771805040

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 35 40 41 52 53 56 65 70 80 82 91 104 106 112 130 140 164 182 205 208 212 260 265 280 287 328 364 371 410 424 455 520 530 533 560 574 617 656 689 728 742 820 848 910 1040 1060 1066 1148 1234 1378 1435 1456 1484 1640 1681 1820 1855 2120 2132 2173 2296 2468 2665 2756 2809 2870 2968 3085 3280 3362 3445 3640 3710 3731 4240 4264 4319 4346 4592 4823 4936 5330 5512 5618 5740 5936 6170 6724 6890 7280 7420 7462 8021 8405 8528 8638 8692 9646 9872 10660 10865 11024 11236 11480 11767 12340 13448 13780 14045 14840 14924 15211 16042 16810 17276 17384 18655 19292 19663 21320 21595 21730 21853 22472 22960 23534 24115 24680 25297 26896 27560 28090 28249 29680 29848 30422 32084 32701 33620 34552 34768 36517 37310 38584 39326 40105 42640 43190 43460 43706 44944 47068 48230 49360 50594 55120 56147 56180 56498 58835 59696 60844 64168 65402 67240 69104 73034 74620 76055 77168 78652 80210 86380 86920 87412 89093 94136 96460 98315 101188 109265 112294 112360 112996 115169 117670 121688 126485 128336 130804 134480 141245 146068 149240 152110 152971 157304 160420 163505 172760 173840 174824 177079 178186 182585 188272 192920 196630 197743 202376 218530 224588 224720 225992 228907 230338 235340 243376 252970 255619 261608 280735 282490 292136 298480 304220 305942 314608 320840 327010 328861 345520 349648 354158 356372 365170 385840 393260 395486 404752 425113 437060 445465 449176 451984 457814 460676 470680 505940 511238 523216 561470 564980 575845 584272 608440 611884 623651 641680 654020 657722 708316 712744 730340 764855 786520 790972 806183 850226 874120 885395 890930 898352 915628 921352 941360 988715 1011880 1022476 1037177 1122940 1129960 1144535 1151690 1158209 1216880 1223768 1247302 1278095 1308040 1315444 1340741 1416632 1425488 1460680 1497197 1529710 1573040 1581944 1612366 1644305 1700452 1733153 1748240 1770790 1781860 1831256 1842704 1977430 2023760 2044952 2074354 2125565 2245880 2259920 2289070 2302027 2303380 2316418 2447536 2494604 2556190 2616080 2630888 2681482 2833264 2921360 2975791 2994394 3059420 3118255 3163888 3224732 3288610 3400904 3466306 3541580 3563720 3662512 3954860 4030915 4089904 4148708 4251130 4491760 4578140 4604054 4606760 4632836 4721929 4989208 5112380 5185885 5261776 5362964 5791045 5951582 5988788 6118840 6236510 6449464 6577220 6703705 6801808 6932612 7083160 7127440 7260239 7485985 7909720 8061830 8107463 8297416 8502260 8665765 9156280 9208108 9213520 9265672 9385187 9443858 9978416 10224760 10371770 10480379 10725928 11510135 11582090 11903164 11977576 12132071 12237680 12473020 12898928 13154440 13407410 13483301 13865224 14166320 14520478 14878955 14971970 15819440 16123660 16214926 16594832 17004520 17331530 17429633 18312560 18416216 18531344 18770374 18887716 20449520 20743540 20960758 21451856 22530989 23020270 23164180 23609645 23806328 23955152 24264142 24946040 26308880 26814820 26966602 27730448 29040956 29757910 29943940 32247320 32429852 33053503 34009040 34663060 34859266 36301195 36832432 37540748 37775432 40537315 41487080 41921516 45061978 46040540 46328360 46925935 47219290 47612656 48528284 49892080 52401895 53629640 53933204 54970381 58081912 59515820 59887880 60660355 61385077 64494640 64859704 66107006 67416505 69326120 69718532 71059273 72602390 75081496 75550864 81074630 82974160 83843032 87148165 90123956 92081080 92656720 93851870 94383107 94438580 97056568 104803790 107259280 107866408 109940762 112654945 116163824 119031640 119775760 121320710 122007431 122770154 129719408 132214012 134833010 138652240 139437064 142118546 145204780 150162992 157716923 162149260 165267515 167686064 174296330 180247912 184162160 187703740 188766214 188877160 194113136 209607580 215732816 219881524 225309890 238063280 242641420 244014862 245540308 264428024 269666020 274851905 278874128 284237092 290409560 306925385 315433846 324298520 330535030 348592660 355296365 360495824 375407480 377532428 377754320 384792667 419215160 429695539 439763048 450619780 471915535 485282840 488029724 491080616 497414911 528856048 539332040 549703810 568474184 580819120 610037155 613850770 630867692 648597040 661070060 697185320 710592730 714614953 750814960 755064856 769585334 788584615 838430320 859391078 879526096 901239560 923770549 943831070 970565680 976059448 982161232 994829822 1078664080 1099407620 1136948368 1220074310 1227701540 1261735384 1322140120 1394370640 1421185460 1429229906 1510129712 1539170668 1577169230 1718782156 1802479120 1847541098 1887662140 1923963335 1952118896 1989659644 2148477695 2198815240 2440148620 2455403080 2487074555 2523470768 2644280240 2842370920 2858459812 2913430193 3078341336 3154338460 3437564312 3573074765 3695082196 3775324280 3847926670 3979319288 4296955390 4397630480 4618852745 4880297240 4910806160 4974149110 5002304671 5684741840 5716919624 5826860386 6156682672 6308676920 6466393843 6875128624 7146149530 7390164392 7550648560 7695853340 7958638576 8593910780 9237705490 9760594480 9948298220 10004609342 11433839248 11653720772 12617353840 12932787686 14292299060 14567150965 14780328784 15391706680 17187821560 18475410980 19896596440 20009218684 20394011351 23307441544 25011523355 25865575372 28584598120 29134301930 30783413360 32331969215 34375643120 36950821960 37874592509 39793192880 40018437368 40788022702 46614883088 50023046710 51731150744 57169196240 58268603860 64663938430 73901643920 75749185018 80036874736 81576045404 100046093420 101970056755 103462301488 116537207720 129327876860 151498370036 163152090808 189372962545 200092186840 203940113510 233074415440 258655753720 265122147563 302996740072 326304181616 378745925090 400184373680 407880227020 517311507440 530244295126 605993480144 757491850180 815760454040 1060488590252 1325610737815 1514983700360 1631520908080 2120977180504 2651221475630 3029967400720 4241954361008 5302442951260 10604885902520 21209771805040
• Sum of all divisors σ(n): 63507653625024
• Sum of proper divisors (its aliquot sum) s(n): 42297881819984
• 21209771805040 is an abundant number, because the sum of its proper divisors (42297881819984) is greater than itself. Its abundance is 21088110014944

Bases of 21209771805040

• Binary: 100110100101001001000111010100000100101110000₂
• Hexadecimal: 0x134A48EA0970
• Base-36: 7INMUIGDS

Squares and roots of 21209771805040

• 21209771805040 squared (21209771805040²) is 449854420021869739769401600
• 21209771805040 cubed (21209771805040³) is 9541309594152474466744616046992664064000
• The square root of 21209771805040 is 4605406.8012543691
• The cube root of 21209771805040 is 27680.8017758597

Scales and comparisons

• 21,209,771,805,040 seconds is equal to 674,405 years, 7 weeks, 23 hours, 10 minutes, 40 seconds.
• To count from 1 to 21,209,771,805,040 would take you about one million, six hundred eighty-six thousand and twelve 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 21209771805040 cubic inches would be around 2306.7 feet tall.

Recreational maths with 21209771805040

• 21209771805040 backwards is 04050817790212
• The number of decimal digits it has is: 14
• The sum of 21209771805040's digits is 46
• More coming soon!