18644479471940

Names of 18644479471940

• Cardinal: 18644479471940 can be written as Eighteen trillion, six hundred forty-four billion, four hundred seventy-nine million, four hundred seventy-one thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.864447947194 × 10¹³

Factors of 18644479471940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 273287

Divisors of 18644479471940

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 10 14 19 20 28 35 38 49 70 76 95 98 133 140 190 193 196 245 266 361 380 386 490 532 665 722 772 931 965 980 1330 1351 1444 1805 1862 1930 2527 2660 2702 3610 3667 3724 3860 4655 5054 5404 6755 7220 7334 9310 9457 10108 12635 13510 14668 17689 18335 18620 18914 25270 25669 27020 35378 36670 37828 47285 50540 51338 69673 70756 73340 88445 94570 102676 128345 139346 176890 179683 189140 256690 273061 278692 348365 353780 359366 487711 513380 546122 696730 718732 898415 975422 1092244 1365305 1393460 1796830 1911427 1950844 2438555 2730610 3413977 3593660 3822854 4877110 5188159 5461220 6827954 7645708 9557135 9754220 10376318 13379989 13655908 17069885 19114270 20752636 25940795 26759978 34139770 36317113 38228540 51881590 52700773 53519956 66899945 68279540 72634226 98575021 103763180 105401546 133799890 145268452 181585565 197150042 210803092 254219791 263503865 267599780 363171130 368905411 394300084 492875105 508439582 527007730 690025147 726342260 737810822 985750210 1001314687 1016879164 1054015460 1271098955 1380050294 1475621644 1844527055 1971500420 2002629374 2542197910 2582337877 2760100588 3450125735 3689054110 4005258748 4830176029 5006573435 5084395820 5164675754 6900251470 7009202809 7378108220 9660352058 10013146870 10329351508 12911689385 13800502940 14018405618 19024979053 19320704116 20026293740 24150880145 25823378770 28036811236 35046014045 38049958106 48301760290 49064419663 51646757540 70092028090 76099916212 95124895265 96603520580 98128839326 133174853371 140184056180 190249790530 196257678652 245322098315 266349706742 380499581060 490644196630 532699413484 665874266855 932223973597 981288393260 1331748533710 1864447947194 2663497067420 3728895894388 4661119867985 9322239735970 18644479471940
• Sum of all divisors σ(n): 48318352575192
• Sum of proper divisors (its aliquot sum) s(n): 29673873103252
• 18644479471940 is an abundant number, because the sum of its proper divisors (29673873103252) is greater than itself. Its abundance is 11029393631312

Bases of 18644479471940

• Binary: 100001111010100000001100100110111000101000100₂
• Hexadecimal: 0x10F501937144
• Base-36: 6LX5LOW1W

Squares and roots of 18644479471940

• 18644479471940 squared (18644479471940²) is 347616614779592061247363600
• 18644479471940 cubed (18644479471940³) is 6481130838363378993573861830645177384000
• The square root of 18644479471940 is 4317925.3666477377
• The cube root of 18644479471940 is 26516.5338718837

Scales and comparisons

• 18,644,479,471,940 seconds is equal to 592,836 years, 40 weeks, 2 days, 11 hours, 32 minutes, 20 seconds.
• To count from 1 to 18,644,479,471,940 would take you about one million, four hundred eighty-two thousand and ninety-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 18644479471940 cubic inches would be around 2209.7 feet tall.

Recreational maths with 18644479471940

• 18644479471940 backwards is 04917497444681
• The number of decimal digits it has is: 14
• The sum of 18644479471940's digits is 68
• More coming soon!