21731984908920

Names of 21731984908920

• Cardinal: 21731984908920 can be written as Twenty-one trillion, seven hundred thirty-one billion, nine hundred eighty-four million, nine hundred eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.173198490892 × 10¹³

Factors of 21731984908920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 15534

Divisors of 21731984908920

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 13 15 18 20 22 24 26 27 30 33 36 39 40 44 45 52 54 55 60 65 66 72 78 88 90 99 104 108 110 117 120 130 132 135 143 156 165 169 180 195 198 216 220 234 260 264 270 286 297 312 330 338 351 360 390 396 429 440 468 495 507 520 540 572 585 594 660 676 702 715 733 780 792 845 858 936 990 1014 1080 1144 1170 1188 1287 1320 1352 1404 1430 1466 1485 1521 1560 1690 1716 1755 1859 1980 2028 2145 2199 2340 2376 2535 2574 2808 2860 2932 2970 3042 3380 3432 3510 3665 3718 3861 3960 4056 4290 4398 4563 4680 5070 5148 5577 5720 5864 5940 6084 6435 6597 6760 7020 7330 7436 7605 7722 8063 8580 8796 9126 9295 9529 10140 10296 10995 11154 11880 12168 12870 13194 14040 14660 14767 14872 15210 15444 16126 16731 17160 17592 18252 18590 19058 19305 19791 20280 21990 22308 22815 24189 25740 26388 27885 28587 29320 29534 30420 30888 32252 32985 33462 36504 37180 38116 38610 39582 40315 43980 44301 44616 45630 47645 48378 50193 51480 52776 55770 57174 59068 60840 64504 65970 66924 72567 73835 74360 76232 77220 79164 80630 83655 85761 87960 88602 91260 95290 96756 98955 100386 104819 111540 114348 118136 120945 123877 131940 132903 133848 142935 145134 147670 154440 158328 161260 162437 167310 171522 177204 182520 190580 191971 193512 197910 200772 209638 217701 221505 223080 228696 241890 247754 250965 257283 263880 265806 285870 290268 295340 314457 322520 324874 334620 343044 354408 362835 371631 381160 383942 395820 398709 401544 419276 428805 435402 443010 483780 487311 495508 501930 514566 524095 531612 571740 575913 580536 590680 619385 628914 649748 664515 669240 686088 725670 743262 767884 791640 797418 812185 838552 857610 870804 886020 943371 959855 967560 974622 991016 1003860 1029132 1048190 1063224 1088505 1114893 1143480 1151826 1238770 1257828 1286415 1299496 1329030 1362647 1451340 1461933 1486524 1535768 1572285 1594836 1624370 1715220 1727739 1741608 1772040 1858155 1886742 1919710 1949244 1993545 2007720 2058264 2096380 2111681 2177010 2229786 2303652 2436555 2477540 2495623 2515656 2572830 2658060 2725294 2830113 2879565 2902680 2923866 2973048 3144570 3189672 3248740 3344679 3430440 3455478 3716310 3773484 3839420 3898488 3987090 4087941 4192760 4223362 4354020 4385799 4459572 4607304 4716855 4873110 4955080 4991246 5145660 5183217 5316120 5450588 5574465 5660226 5759130 5847732 6289140 6335043 6497480 6689358 6813235 6910956 7309665 7432620 7486869 7546968 7678840 7974180 8175882 8446724 8638695 8708040 8771598 8919144 9433710 9746220 9982492 10291320 10366434 10558405 10824211 10901176 11148930 11320452 11518260 11695464 12263823 12478115 12578280 12670086 13378716 13626470 13821912 14150565 14619330 14865240 14973738 15948360 16351764 16723395 16893448 17277390 17543196 18867420 19005129 19492440 19964984 20439705 20732868 21116810 21648422 21928995 22297860 22460607 22640904 23036520 24527646 24956230 25340172 25916085 26757432 27252940 27451853 28301130 29238660 29947476 31675215 32472633 32703528 33446790 34554780 35086392 36791469 37434345 37734840 38010258 40879410 41465736 42233620 43296844 43857990 44595720 44921214 49055292 49912460 50680344 51832170 54121055 54505880 54903706 56602260 57015387 58477320 59894952 61319115 63350430 64945266 66893580 67381821 69109560 73582938 74868690 76020516 81758820 82355559 84467240 86593688 87715980 89842428 95025645 97417899 98110584 99824920 103664340 108242110 109807412 112303035 113204520 114030774 119066321 122638230 126700860 129890532 133787160 134763642 137259265 140714743 147165876 149737380 152041032 162363165 163517640 164711118 175431960 179684856 183957345 190051290 194835798 207328680 216484220 219614824 224606070 228061548 238132642 245276460 247066677 253401720 259781064 269527284 274518530 281429486 285076935 292253697 294331752 299474760 324726330 329422236 336909105 357198963 367914690 380102580 389671596 411777795 422144229 432968440 449212140 456123096 476265284 487089495 490552920 494133354 539054568 549037060 562858972 570153870 584507394 595331605 649452660 658844472 673818210 703573715 714397926 735829380 741200031 760205160 779343192 823555590 844288458 898424280 952530568 974178990 988266708 1071596889 1098074120 1125717944 1140307740 1169014788 1190663210 1235333385 1266432687 1298905320 1347636420 1407147430 1428795852 1461268485 1471658760 1482400062 1547862173 1647111180 1688576916 1785994815 1829291659 1948357980 1976533416 2110721145 2143193778 2280615480 2338029576 2381326420 2470666770 2532865374 2695272840 2814294860 2857591704 2922536970 2964800124 3095724346 3214790667 3294222360 3377153832 3571989630 3658583318 3706000155 3799298061 3896715960 4221442290 4286387556 4643586519 4762652840 4941333540 5065730748 5357984445 5487874977 5628589720 5845073940 5929600248 6191448692 6332163435 6429581334 7143979260 7317166636 7412000310 7598596122 7739310865 8442884580 8572775112 9146458295 9287173038 9882667080 10131461496 10715968890 10975749954 11690147880 12382897384 12664326870 12859162668 13930759557 14287958520 14634333272 14824000620 15197192244 15478621730 16073953335 16463624931 16885769160 18292916590 18574346076 18996490305 20122208249 21431937780 21951499908 23217932595 25328653740 25718325336 27439374885 27861519114 29648001240 30394384488 30957243460 32147906670 32927249862 36585833180 37148692152 37992980610 40244416498 41792278671 42863875560 43902999816 46435865190 49390874793 50657307480 54878749770 55723038228 60366624747 61914486920 64295813340 65854499724 69653797785 73171666360 75985961220 80488832996 82318124655 83584557342 92871730380 98781749586 100611041245 109757499540 111446076456 120733249494 128591626680 131708999448 139307595570 151971922440 160977665992 164636249310 167169114684 181099874241 185743460760 197563499172 201222082490 208961393355 219514999080 241466498988 246954373965 278615191140 301833123735 329272498620 334338229368 362199748482 395126998344 402444164980 417922786710 482932997976 493908747930 543299622723 557230382280 603666247470 658544997240 724399496964 804888329960 835845573420 905499371205 987817495860 1086599245446 1207332494940 1448798993928 1671691146840 1810998742410 1975634991720 2173198490892 2414664989880 2716498113615 3621997484820 4346396981784 5432996227230 7243994969640 10865992454460 21731984908920
• Sum of all divisors σ(n): 85694427187200
• Sum of proper divisors (its aliquot sum) s(n): 63962442278280
• 21731984908920 is an abundant number, because the sum of its proper divisors (63962442278280) is greater than itself. Its abundance is 42230457369360

Bases of 21731984908920

• Binary: 100111100001111011111001111011010001001111000₂
• Hexadecimal: 0x13C3DF3DA278
• Base-36: 7PBJAPM60

Squares and roots of 21731984908920

• 21731984908920 squared (21731984908920²) is 472279168081526620695566400
• 21731984908920 cubed (21731984908920³) is 10263563753545028669191293958351812288000
• The square root of 21731984908920 is 4661757.7059431135
• The cube root of 21731984908920 is 27906.1419009167

Scales and comparisons

• 21,731,984,908,920 seconds is equal to 691,009 years, 46 weeks, 5 days, 2 hours, 42 minutes.
• To count from 1 to 21,731,984,908,920 would take you about one million, seven hundred twenty-seven thousand, five hundred twenty-four 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 21731984908920 cubic inches would be around 2325.5 feet tall.

Recreational maths with 21731984908920

• 21731984908920 backwards is 02980948913712
• The number of decimal digits it has is: 14
• The sum of 21731984908920's digits is 63
• More coming soon!