18981440029053440

Names of 18981440029053440

• Cardinal: 18981440029053440 can be written as Eighteen quadrillion, nine hundred eighty-one trillion, four hundred forty billion, twenty-nine million, fifty-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.898144002905344 × 10¹⁶

Factors of 18981440029053440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 668

Divisors of 18981440029053440

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 8 10 16 20 31 32 37 40 62 64 74 80 124 128 148 155 160 185 248 256 296 310 320 370 496 512 592 593 620 640 740 961 992 1147 1184 1186 1240 1280 1480 1922 1984 2294 2368 2372 2480 2560 2960 2965 3844 3968 4588 4736 4744 4805 4960 5735 5920 5930 7688 7936 9176 9472 9488 9610 9920 11470 11840 11860 15376 15872 18352 18383 18944 18976 19220 19840 21941 22940 23680 23720 30752 35557 36704 36766 37952 38440 39680 43882 45880 47360 47440 61504 71114 73408 73532 75904 76880 79360 87764 91760 91915 94720 94880 109705 123008 142228 146816 147064 151808 153760 175528 177785 183520 183830 189760 219410 246016 284456 293632 294128 303616 307520 351056 351649 355570 367040 367660 379520 438820 492032 568912 569873 587264 588256 615040 680171 702112 703298 711140 734080 735320 759040 877640 1137824 1139746 1176512 1230080 1360342 1404224 1406596 1422280 1468160 1470640 1518080 1755280 1758245 2275648 2279492 2353024 2460160 2720684 2808448 2813192 2844560 2849365 2936320 2941280 3400855 3510560 3516490 4551296 4558984 4706048 5441368 5616896 5626384 5689120 5698730 5882560 6801710 7021120 7032980 9102592 9117968 9412096 10882736 10901119 11233792 11252768 11378240 11397460 11765120 13011013 13603420 14042240 14065960 18205184 18235936 21085301 21765472 21802238 22505536 22756480 22794920 23530240 26022026 27206840 28084480 28131920 36471872 42170602 43530944 43604476 45011072 45512960 45589840 47060480 52044052 54413680 54505595 56168960 56263840 65055065 72943744 84341204 87061888 87208952 90022144 91025920 91179680 104088104 105426505 108827360 109011190 112527680 130110130 145887488 168682408 174123776 174417904 180044288 182359360 208176208 208527857 210853010 217654720 218022380 225055360 260220260 291774976 337364816 337934689 348247552 348835808 364718720 403341403 416352416 417055714 421706020 435309440 436044760 450110720 520440520 674729632 675869378 697671616 729437440 806682806 832704832 834111428 843412040 870618880 872089520 900221440 1040881040 1042639285 1349459264 1351738756 1395343232 1458874880 1613365612 1665409664 1668222856 1686824080 1689673445 1741237760 1744179040 2016707015 2081762080 2085278570 2698918528 2703477512 2790686464 3226731224 3330819328 3336445712 3373648160 3379346890 3488358080 4033414030 4163524160 4170557140 5397837056 5406955024 5581372928 6453462448 6464363567 6661638656 6672891424 6747296320 6758693780 6976716160 7715530709 8066828060 8327048320 8341114280 10795674112 10813910048 12503583493 12906924896 12928727134 13345782848 13494592640 13517387560 13953432320 15431061418 16133656120 16654096640 16682228560 21627820096 25007166986 25813849792 25857454268 26691565696 26989185280 27034775120 27906864640 30862122836 32267312240 32321817835 33308193280 33364457120 38577653545 43255640192 50014333972 51627699584 51714908536 53383131392 53978370560 54069550240 61724245672 62517917465 64534624480 64643635670 66728914240 77155307090 86511280384 100028667944 103255399168 103429817072 106766262784 108139100480 123448491344 125035834930 129069248960 129287271340 133457828480 154310614180 173022560768 200057335888 200395270577 206510798336 206859634144 216278200960 239181451979 246896982688 250071669860 258138497920 258574542680 266915656960 308621228360 400114671776 400790541154 413719268288 432556401920 478362903958 493793965376 500143339720 516276995840 517149085360 533831313920 617242456720 800229343552 801581082308 827438536576 865112803840 956725807916 987587930752 1000286679440 1001976352885 1032553991680 1034298170720 1195907259895 1234484913440 1600458687104 1603162164616 1654877073152 1913451615832 1975175861504 2000573358880 2003952705770 2068596341440 2391814519790 2468969826880 3200917374208 3206324329232 3309754146304 3826903231664 3950351723008 4001146717760 4007905411540 4137192682880 4783629039580 4937939653760 6401834748416 6412648658464 7414625011349 7653806463328 8002293435520 8015810823080 8274385365760 9567258079160 9875879307520 12825297316928 14829250022698 15307612926656 16004586871040 16031621646160 16548770731520 19134516158320 19751758615040 25650594633856 29658500045396 30615225853312 32009173742080 32063243292320 37073125056745 38269032316640 51301189267712 59317000090792 61230451706624 64126486584640 74146250113490 76538064633280 102602378535424 118634000181584 122460903413248 128252973169280 148292500226980 153076129266560 237268000363168 256505946338560 296585000453960 306152258533120 474536000726336 513011892677120 593170000907920 612304517066240 949072001452672 1186340001815840 1898144002905344 2372680003631680 3796288005810688 4745360007263360 9490720014526720 18981440029053440
• Sum of all divisors σ(n): 48378989834089200
• Sum of proper divisors (its aliquot sum) s(n): 29397549805035760
• 18981440029053440 is an abundant number, because the sum of its proper divisors (29397549805035760) is greater than itself. Its abundance is 10416109775982320

Bases of 18981440029053440

• Binary: 1000011011011111000010011100110010000011101001000000000₂
• Hexadecimal: 0x436F84E641D200
• Base-36: 56WCX631FY8

Squares and roots of 18981440029053440

• 18981440029053440 squared (18981440029053440²) is 360295065576552257151302375833600
• 18981440029053440 cubed (18981440029053440³) is 6838919180005203146006443378752862882138947584000
• The square root of 18981440029053440 is 137773146.9810189101
• The cube root of 18981440029053440 is 266753.2497985279

Scales and comparisons

• 18,981,440,029,053,440 seconds is equal to 603,551,079 years, 24 weeks, 4 days, 20 hours, 37 minutes, 20 seconds.
• To count from 1 to 18,981,440,029,053,440 would take you about one billion, eight hundred ten million, six hundred fifty-three thousand, two hundred thirty-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 18981440029053440 cubic inches would be around 22229.4 feet tall.

Recreational maths with 18981440029053440

• 18981440029053440 backwards is 04435092004418981
• 18981440029053440 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18981440029053440's digits is 62
• More coming soon!