1818809918640

Names of 1818809918640

• Cardinal: 1818809918640 can be written as One trillion, eight hundred eighteen billion, eight hundred nine million, nine hundred eighteen thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.81880991864 × 10¹²

Factors of 1818809918640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 501

Divisors of 1818809918640

• Number of divisors d(n): 840
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 13 15 16 18 20 22 24 26 27 30 33 36 39 40 44 45 48 52 54 55 60 65 66 72 78 80 81 88 90 99 104 108 110 117 120 130 132 135 143 144 156 162 165 176 180 195 198 208 216 220 234 240 243 260 264 270 286 297 312 324 330 351 360 390 396 405 429 432 440 467 468 486 495 520 528 540 572 585 594 624 648 660 702 715 720 729 780 792 810 858 880 891 934 936 972 990 1040 1053 1080 1144 1170 1188 1215 1287 1296 1320 1401 1404 1430 1458 1485 1560 1584 1620 1716 1755 1782 1868 1872 1944 1980 2106 2145 2160 2288 2335 2340 2376 2430 2574 2640 2673 2802 2808 2860 2916 2970 3120 3159 3240 3432 3510 3564 3645 3736 3861 3888 3960 4203 4212 4290 4455 4670 4680 4752 4860 5137 5148 5265 5346 5604 5616 5720 5832 5940 6071 6318 6435 6480 6864 7005 7020 7128 7290 7472 7722 7920 8019 8406 8424 8580 8910 9340 9360 9477 9720 10274 10296 10530 10692 11208 11440 11583 11664 11880 12142 12609 12636 12870 13365 14010 14040 14256 14580 15411 15444 15795 16038 16812 16848 17160 17820 18213 18680 18954 19305 19440 20548 20592 21015 21060 21384 22416 23166 23760 24284 25218 25272 25685 25740 26730 28020 28080 29160 30355 30822 30888 31590 32076 33624 34320 34749 35640 36426 37360 37827 37908 38610 40095 41096 42030 42120 42768 46233 46332 47385 48568 50436 50544 51370 51480 53460 54639 56040 57915 58320 60710 61644 61776 63045 63180 64152 66781 67248 69498 71280 72852 75654 75816 77055 77220 80190 82192 84060 84240 91065 92466 92664 94770 97136 100872 102740 102960 104247 106920 109278 112080 113481 115830 121420 123288 126090 126360 128304 133562 138699 138996 145704 151308 151632 154110 154440 160380 163917 168120 173745 182130 184932 185328 189135 189540 200343 201744 205480 208494 213840 218089 218556 226962 231165 231660 242840 246576 252180 252720 267124 273195 277398 277992 291408 302616 308220 308880 320760 327834 333905 336240 340443 347490 364260 369864 378270 379080 400686 410960 416097 416988 436178 437112 453924 462330 463320 485680 491751 504360 521235 534248 546390 554796 555984 567405 601029 605232 616440 641520 654267 655668 667810 680886 693495 694980 728520 739728 756540 758160 801372 819585 832194 833976 872356 874224 907848 924660 926640 983502 1001715 1008720 1042470 1068496 1090445 1092780 1109592 1134810 1202058 1232880 1248291 1308534 1311336 1335620 1361772 1386990 1389960 1457040 1475253 1513080 1602744 1639170 1664388 1667952 1702215 1744712 1803087 1815696 1849320 1962801 1967004 2003430 2080485 2084940 2180890 2185560 2219184 2269620 2398979 2404116 2458755 2496582 2617068 2622672 2671240 2723544 2773980 2779920 2835157 2950506 3005145 3026160 3205488 3271335 3278340 3328776 3404430 3489424 3606174 3698640 3744873 3925602 3934008 4006860 4160970 4169880 4361780 4371120 4425759 4539240 4797958 4808232 4917510 4993164 5234136 5342480 5409261 5447088 5547960 5670314 5888403 5901012 6010290 6241455 6542670 6556680 6657552 6808860 7196937 7212348 7376265 7489746 7851204 7868016 8013720 8321940 8339760 8505471 8723560 8851518 9015435 9078480 9595916 9616464 9814005 9835020 9986328 10468272 10818522 11095920 11340628 11776806 11802024 11994895 12020580 12482910 13085340 13113360 13617720 14175785 14393874 14424696 14752530 14979492 15702408 16027440 16227783 16643880 17010942 17447120 17665209 17703036 18030870 18724365 19191832 19628010 19670040 19972656 21590811 21637044 22128795 22681256 23553612 23604048 23989790 24041160 24965820 25516413 26170680 27046305 27235440 28351570 28787748 28849392 29442015 29505060 29958984 31186727 31404816 32455566 33287760 34021884 35330418 35406072 35984685 36061740 37448730 38383664 39256020 39340080 42527355 43181622 43274088 44257590 45362512 47107224 47979580 48082320 48683349 49931640 51032826 52341360 52995627 54092610 56703140 57575496 58884030 59010120 59917968 62373454 64772433 64911132 68043768 70660836 70812144 71969370 72123480 74897460 76549239 78512040 81138915 85054710 86363244 86548176 88326045 88515180 93560181 94214448 95959160 97366698 99863280 102065652 105991254 107954055 108185220 113406280 115150992 117768060 118020240 124746908 127582065 129544866 129822264 136087536 141321672 143938740 144246960 149794920 153098478 155933635 157024080 158986881 162277830 170109420 172726488 176652090 177030360 187120362 191918320 194317299 194733396 204131304 211982508 215908110 216370440 226812560 229647717 235536120 243416745 249493816 255164130 259089732 259644528 264978135 280680543 282643344 287877480 299589840 306196956 311867270 317973762 323862165 324555660 340218840 345452976 353304180 354060720 374240724 382746195 388634598 389466792 408262608 423965016 431816220 432740880 459295434 467800905 471072240 486833490 498987632 510328260 518179464 529956270 561361086 575754960 582951897 612393912 623734540 635947524 647724330 649111320 680437680 688943151 706608360 748481448 765492390 777269196 778933584 794934405 842041629 847930032 863632440 918590868 935601810 971586495 973666980 1020656520 1036358928 1059912540 1122722172 1148238585 1165903794 1224787824 1247469080 1271895048 1295448660 1298222640 1377886302 1403402715 1413216720 1496962896 1530984780 1554538392 1589868810 1684083258 1727264880 1748855691 1837181736 1871203620 1943172990 1947333960 2041313040 2066829453 2119825080 2245444344 2296477170 2331807588 2494938160 2526124887 2543790096 2590897320 2755772604 2806805430 2914759485 3061969560 3109076784 3179737620 3368166516 3444715755 3497711382 3674363472 3742407240 3886345980 3894667920 4133658906 4210208145 4239650160 4490888688 4592954340 4663615176 5052249774 5181794640 5511545208 5613610860 5829518970 6123939120 6359475240 6736333032 6889431510 6995422764 7484814480 7578374661 7772691960 8267317812 8420416290 8744278455 9185908680 9327230352 10104499548 10334147265 11023090416 11227221720 11659037940 12630624435 12718950480 13472666064 13778863020 13990845528 15156749322 15545383920 16534635624 16840832580 17488556910 18371817360 20208999096 20668294530 22454443440 22735123983 23318075880 25261248870 27557726040 27981691056 30313498644 33069271248 33681665160 34977113820 37891873305 40417998192 41336589060 45470247966 46636151760 50522497740 55115452080 60626997288 67363330320 69954227640 75783746610 82673178120 90940495932 101044995480 113675619915 121253994576 139908455280 151567493220 165346356240 181880991864 202089990960 227351239830 303134986440 363761983728 454702479660 606269972880 909404959320 1818809918640
• Sum of all divisors σ(n): 7464609765648
• Sum of proper divisors (its aliquot sum) s(n): 5645799847008
• 1818809918640 is an abundant number, because the sum of its proper divisors (5645799847008) is greater than itself. Its abundance is 3826989928368

Bases of 1818809918640

• Binary: 11010011101111001100001001110010010110000₂
• Hexadecimal: 0x1A77984E4B0
• Base-36: N7JSGR00

Squares and roots of 1818809918640

• 1818809918640 squared (1818809918640²) is 3308069520143243419449600
• 1818809918640 cubed (1818809918640³) is 6016749654787196404874842369580544000
• The square root of 1818809918640 is 1348632.6106987033
• The cube root of 1818809918640 is 12206.6297358557

Scales and comparisons

• 1,818,809,918,640 seconds is equal to 57,832 years, 27 weeks, 3 days, 17 hours, 24 minutes.
• To count from 1 to 1,818,809,918,640 would take you about one hundred forty-four thousand, five hundred eighty-one 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 1818809918640 cubic inches would be around 1017.2 feet tall.

Recreational maths with 1818809918640

• 1818809918640 backwards is 0468199088181
• The number of decimal digits it has is: 13
• The sum of 1818809918640's digits is 63
• More coming soon!