18979209871440

Names of 18979209871440

• Cardinal: 18979209871440 can be written as Eighteen trillion, nine hundred seventy-nine billion, two hundred nine million, eight hundred seventy-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.897920987144 × 10¹³

Factors of 18979209871440

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 790

Divisors of 18979209871440

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 35 39 40 41 42 48 52 56 60 65 70 78 80 82 84 91 104 105 112 120 123 130 140 156 164 168 182 195 205 208 210 240 246 260 273 280 287 312 328 336 364 390 410 420 455 492 520 533 546 560 574 615 624 656 719 728 780 820 840 861 910 984 1040 1066 1092 1148 1230 1365 1435 1438 1456 1560 1599 1640 1680 1681 1722 1820 1968 2132 2157 2184 2296 2460 2665 2730 2870 2876 3120 3198 3280 3362 3444 3595 3640 3731 4264 4305 4314 4368 4592 4920 5033 5043 5330 5460 5740 5752 6396 6724 6888 7190 7280 7462 7995 8405 8528 8610 8628 9347 9840 10066 10086 10660 10785 10920 11193 11480 11504 11767 12792 13448 13776 14380 14924 15099 15990 16810 17220 17256 18655 18694 20132 20172 21320 21570 21840 21853 22386 22960 23534 25165 25215 25584 26896 28041 28760 29479 29848 30198 31980 33620 34440 34512 35301 37310 37388 40264 40344 42640 43140 43706 44772 46735 47068 50330 50430 55965 56082 57520 58835 58958 59696 60396 63960 65429 65559 67240 68880 70602 74620 74776 75495 80528 80688 86280 87412 88437 89544 93470 94136 100660 100860 109265 111930 112164 117670 117916 120792 127920 130858 131118 134480 140205 141204 147395 149240 149552 150990 152971 172560 174824 176505 176874 179088 186940 188272 196287 201320 201720 206353 218530 223860 224328 235340 235832 241584 261716 262236 280410 282408 294790 298480 301980 305942 327145 327795 349648 353010 353748 373880 383227 392574 402640 403440 412706 437060 442185 447720 448656 458913 470680 471664 516961 523432 524472 560820 564816 589580 603960 611884 619059 654290 655590 706020 707496 747760 764855 766454 785148 825412 874120 884370 895440 917826 941360 981435 1031765 1033922 1046864 1048944 1121640 1149681 1179160 1207920 1208639 1223768 1238118 1308580 1311180 1412040 1414992 1529710 1532908 1550883 1570296 1650824 1748240 1768740 1835652 1916135 1962870 2063530 2067844 2243280 2294565 2299362 2358320 2417278 2447536 2476236 2584805 2617160 2622360 2682589 2824080 3059420 3065816 3095295 3101766 3140592 3301648 3537480 3618727 3625917 3671304 3832270 3925740 4127060 4135688 4589130 4598724 4834556 4952472 5169610 5234320 5244720 5365178 5748405 6043195 6118840 6131632 6190590 6203532 6720493 7074960 7237454 7251834 7342608 7664540 7754415 7851480 8047767 8254120 8271376 8460473 9178260 9197448 9669112 9904944 10339220 10730356 10856181 11496810 12086390 12237680 12381180 12407064 13412945 13440986 14474908 14503668 15329080 15508830 15702960 15712307 16095534 16508240 16920946 18093635 18129585 18356520 18394896 19338224 20161479 20678440 21195401 21460712 21712362 22993620 24172780 24762360 24814128 25381419 26825890 26881972 28949816 29007336 30658160 31017660 31424614 32191068 33602465 33841892 36187270 36259170 36713040 40238835 40322958 41356880 42302365 42390802 42921424 43424724 45987240 47043451 47136921 48345560 49524720 50762838 53651780 53763944 54280905 57899632 58014672 62035320 62849228 63586203 64382136 67204930 67683784 72374540 72518340 78561535 80477670 80645916 84604730 84781604 86849448 91974480 94086902 94273842 96691120 100807395 101525676 105977005 107303560 107527888 108561810 109986149 124070640 125698456 126907095 127172406 128764272 134409860 135367568 141130353 144749080 145036680 148367807 157123070 160955340 161291832 169209460 169563208 173698896 188173804 188547684 201614790 203051352 211954010 214607120 217123620 219972298 235217255 235684605 251396912 253814190 254344812 268819720 275540213 282260706 289498160 290073360 296735614 314246140 317931015 321910680 322583664 329958447 338418920 339126416 376347608 377095368 403229580 406102704 423908020 434247240 439944596 445103421 470434510 471369210 507628380 508689624 537639440 549930745 551080426 564521412 593471228 628492280 635862030 643821360 659916894 676837840 705651765 741839035 752695216 754190736 806459160 826620639 847816040 868494480 869011441 879889192 890206842 940869020 942738420 1015256760 1017379248 1099861490 1102160852 1129042824 1186942456 1256984560 1271724060 1319833788 1377701065 1411303530 1483678070 1612918320 1649792235 1653241278 1695632080 1738022882 1759778384 1780413684 1881738040 1885476840 1928781491 2030513520 2199722980 2204321704 2225517105 2258085648 2373884912 2543448120 2607034323 2639667576 2755402130 2822607060 2967356140 3299584470 3306482556 3476045764 3560827368 3763476080 3770953680 3857562982 4133103195 4345057205 4399445960 4408643408 4451034210 5086896240 5214068646 5279335152 5510804260 5645214120 5786344473 5934712280 6083080087 6599168940 6612965112 6952091528 7121654736 7715125964 8266206390 8690114410 8798891920 8902068420 9643907455 10428137292 11021608520 11290428240 11297148733 11572688946 11869424560 12166160174 13035171615 13198337880 13225930224 13904183056 15430251928 16532412780 17380228820 17804136840 18249240261 19287814910 20856274584 22043217040 22594297466 23145377892 24332320348 26070343230 26396675760 28931722365 30415400435 30860503856 33064825560 33891446199 34760457640 35608273680 36498480522 38575629820 41712549168 45188594932 46290755784 48664640696 52140686460 56485743665 57863444730 60830800870 66129651120 67782892398 69520915280 72996961044 77151259640 79080041131 90377189864 91246201305 92581511568 97329281392 104281372920 112971487330 115726889460 121661601740 135565784796 145993922088 154302519280 158160082262 169457230995 180754379728 182492402610 208562745840 225942974660 231453778920 237240123393 243323203480 271131569592 291987844176 316320164524 338914461990 364984805220 395400205655 451885949320 462907557840 474480246786 486646406960 542263139184 632640329048 677828923980 729969610440 790800411310 903771898640 948960493572 1186200616965 1265280658096 1355657847960 1459939220880 1581600822620 1897920987144 2372401233930 2711315695920 3163201645240 3795841974288 4744802467860 6326403290480 9489604935720 18979209871440
• Sum of all divisors σ(n): 74325606440064
• Sum of proper divisors (its aliquot sum) s(n): 55346396568624
• 18979209871440 is an abundant number, because the sum of its proper divisors (55346396568624) is greater than itself. Its abundance is 36367186697184

Bases of 18979209871440

• Binary: 100010100001011110001000100000000000001010000₂
• Hexadecimal: 0x1142F1100050
• Base-36: 6Q6XFJ1AO

Squares and roots of 18979209871440

• 18979209871440 squared (18979209871440²) is 360210407344165541327673600
• 18979209871440 cubed (18979209871440³) is 6836508918861810115455674072770281984000
• The square root of 18979209871440 is 4356513.4995131141
• The cube root of 18979209871440 is 26674.2802310699

Scales and comparisons

• 18,979,209,871,440 seconds is equal to 603,480 years, 8 weeks, 4 days, 22 hours, 4 minutes.
• To count from 1 to 18,979,209,871,440 would take you about one million, five hundred eight thousand, seven hundred 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 18979209871440 cubic inches would be around 2222.9 feet tall.

Recreational maths with 18979209871440

• 18979209871440 backwards is 04417890297981
• The number of decimal digits it has is: 14
• The sum of 18979209871440's digits is 69
• More coming soon!