21357664020

Names of 21357664020

• Cardinal: 21357664020 can be written as Twenty-one billion, three hundred fifty-seven million, six hundred sixty-four thousand and twenty.

Scientific notation

• Scientific notation: 2.135766402 × 10¹⁰

Factors of 21357664020

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 221

Divisors of 21357664020

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 11 12 14 15 18 19 20 21 22 28 30 33 35 36 38 42 44 45 55 57 60 63 66 70 73 76 77 84 90 95 99 101 105 110 114 121 126 132 133 140 146 154 165 171 180 190 198 202 209 210 219 220 228 231 242 252 266 285 292 303 308 315 330 342 363 365 380 385 396 399 404 418 420 438 462 484 495 505 511 532 570 605 606 627 630 657 660 665 684 693 707 726 730 770 798 803 836 847 855 876 909 924 990 1010 1022 1045 1089 1095 1111 1140 1155 1197 1210 1212 1254 1260 1314 1330 1386 1387 1414 1452 1460 1463 1515 1533 1540 1596 1606 1694 1710 1815 1818 1881 1919 1980 1995 2020 2044 2090 2121 2178 2190 2222 2299 2310 2394 2409 2420 2508 2541 2555 2628 2660 2772 2774 2828 2926 3030 3066 3135 3212 3285 3333 3388 3420 3465 3535 3630 3636 3762 3838 3990 4015 4161 4180 4235 4242 4356 4380 4389 4444 4545 4598 4599 4620 4788 4818 5082 5110 5445 5548 5555 5621 5757 5852 5985 6060 6132 6270 6363 6570 6666 6897 6930 6935 7070 7227 7260 7315 7373 7524 7623 7665 7676 7777 7980 8030 8322 8470 8484 8778 8833 9090 9196 9198 9405 9595 9636 9709 9999 10164 10220 10605 10890 11110 11242 11495 11514 11970 12045 12221 12483 12540 12705 12726 13140 13167 13332 13433 13794 13860 13870 14140 14454 14630 14746 15246 15257 15330 15554 16060 16093 16644 16665 16863 16940 17271 17556 17666 18180 18396 18810 19190 19418 19998 20691 20805 21109 21210 21780 21945 22119 22220 22484 22990 22995 23028 23331 23940 24090 24442 24966 25410 25452 26334 26499 26866 27588 27740 28105 28785 28908 29127 29260 29492 30492 30514 30660 31108 31815 32186 33330 33726 34485 34542 35332 36135 36663 36865 37620 38115 38380 38836 38885 39996 40299 41382 41610 42218 42420 43890 44165 44238 45771 45980 45990 46662 48180 48279 48545 48884 49932 49995 50589 50820 51611 52668 52998 53732 56210 57570 58254 61028 61105 61831 62415 63327 63630 64372 65835 66357 66660 67165 67452 68970 69084 69993 72270 73326 73730 76230 76285 77770 79497 80465 80598 81103 82764 83220 84315 84436 85547 86355 87381 87780 88330 88476 91542 91980 93324 96558 97090 99990 101178 103222 103455 105545 105996 106799 109989 110595 112420 115140 116508 116655 120897 122210 123662 124830 126654 127260 131670 132495 132714 134330 137313 137940 139986 140087 144540 144837 145635 146652 147460 147763 152460 152570 154833 155540 158994 160930 161196 162206 167827 168630 171094 172710 174762 176660 183084 183315 185493 189981 193116 194180 199980 201495 202356 206444 206910 211090 213598 219978 221190 228855 232199 233310 241395 241794 243309 244420 247324 249660 252945 253308 256641 258055 263340 264990 265428 268660 274626 279972 280174 289674 291270 295526 305140 309155 309666 316635 317988 320397 321860 324412 331785 335654 337260 342188 345420 349524 349965 366630 370986 379962 397485 402990 405515 413820 420261 422180 427196 427735 436905 439956 442380 443289 457710 464398 464499 466620 482790 483588 486618 503481 505890 513282 516110 529980 533995 549252 549945 556479 560348 567721 579348 582540 591052 604485 618310 619332 633270 640794 663570 671308 686565 696597 699930 700435 724185 729927 733260 738815 741972 759924 769923 774165 794970 805980 811030 839135 840522 855470 873810 886578 892133 915420 927465 928796 928998 949905 961191 965580 973236 980609 1006962 1011780 1026564 1032220 1067990 1099890 1112958 1135442 1160995 1174789 1208970 1216545 1236620 1260783 1266540 1281588 1283205 1327140 1329867 1373130 1393194 1399860 1400870 1448370 1459854 1477630 1510443 1539846 1540957 1548330 1589940 1601985 1622060 1625393 1678270 1681044 1703163 1710940 1747620 1773156 1784266 1854930 1857996 1899810 1922382 1961218 2013924 2089791 2101305 2135980 2199780 2216445 2225916 2270884 2321990 2322495 2349578 2417940 2433090 2517405 2521566 2566410 2659734 2676399 2746260 2782395 2786388 2801740 2838605 2896740 2919708 2941827 2955260 3020886 3079692 3081914 3096660 3203970 3250786 3356540 3406326 3482985 3524367 3568532 3649635 3709860 3799620 3844764 3849615 3922436 4179582 4202610 4432890 4460665 4622871 4643980 4644990 4699156 4805955 4866180 4876179 4903045 5034810 5043132 5109489 5132820 5319468 5352798 5564790 5677210 5873945 5883654 6041772 6163828 6244931 6303915 6407940 6501572 6649335 6812652 6965970 7048734 7299270 7552215 7699230 7704785 8029197 8126965 8359164 8405220 8515815 8825481 8865780 8921330 9245742 9289980 9611910 9752358 9806090 10069620 10218978 10448955 10573101 10705596 10786699 11129580 11354420 11747890 11767308 12489862 12607830 13298670 13381995 13868613 13931940 14097468 14598540 14628537 14709135 15104430 15398460 15409570 16058394 16253930 16950527 17031630 17621835 17650962 17842660 18491484 18734793 19223820 19504716 19612180 20437956 20897910 21146202 21573398 23114355 23495780 24380895 24979724 25215660 25547445 26597340 26763990 27737226 29257074 29418270 30208860 30819140 31224655 32116788 32360097 32507860 33901054 34063260 35243670 35301924 37469586 40145985 41795820 42292404 43146796 44127405 46228710 48761790 50851581 51094890 52865505 53527980 53933495 55474452 56204379 58514148 58836540 62449310 64720194 67802108 69343065 70487340 73142685 74939172 80291970 84752635 88254810 92457420 93673965 97080291 97523580 101703162 102189780 105731010 107866990 112408758 118653689 124898620 129440388 138686130 146285370 152554743 160583940 161800485 169505270 176509620 187347930 194160582 203406324 211462020 215733980 224817516 237307378 254257905 277372260 281021895 292570740 305109486 323600970 339010540 355961067 374695860 388321164 474614756 485401455 508515810 562043790 593268445 610218972 647201940 711922134 762773715 970802910 1017031620 1067883201 1124087580 1186536890 1423844268 1525547430 1779805335 1941605820 2135766402 2373073780 3051094860 3559610670 4271532804 5339416005 7119221340 10678832010 21357664020
• Sum of all divisors σ(n): 87699306240
• Sum of proper divisors (its aliquot sum) s(n): 66341642220
• 21357664020 is an abundant number, because the sum of its proper divisors (66341642220) is greater than itself. Its abundance is 44983978200

Bases of 21357664020

• Binary: 10011111001000001000001011100010100₂
• Hexadecimal: 0x4F9041714
• Base-36: 9T7SV10

Squares and roots of 21357664020

• 21357664020 squared (21357664020²) is 456149812391202560400
• 21357664020 cubed (21357664020³) is 9742294435837337088786956808000
• The square root of 21357664020 is 146142.6153454221
• The cube root of 21357664020 is 2774.4990690633

Scales and comparisons

• 21,357,664,020 seconds is equal to 679 years, 5 weeks, 4 days, 4 hours, 27 minutes.
• To count from 1 to 21,357,664,020 would take you about one thousand, three hundred fifty-eight 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 21357664020 cubic inches would be around 231.2 feet tall.

Recreational maths with 21357664020

• 21357664020 backwards is 02046675312
• 21357664020 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21357664020's digits is 36
• More coming soon!