20981798340090500

Names of 20981798340090500

• Cardinal: 20981798340090500 can be written as Twenty quadrillion, nine hundred eighty-one trillion, seven hundred ninety-eight billion, three hundred forty million, ninety thousand, five hundred.

Scientific notation

• Scientific notation: 2.09817983400905 × 10¹⁶

Factors of 20981798340090500

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1108

Divisors of 20981798340090500

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 10 11 20 22 25 44 50 55 59 100 110 118 125 220 236 250 275 295 500 550 590 649 1031 1100 1180 1298 1375 1475 2062 2596 2750 2950 3245 3481 4124 5155 5500 5900 6490 6962 7375 10310 11341 12980 13924 14750 16225 17405 20620 22682 25775 29500 32450 34810 38291 45364 51550 56705 60829 64900 69620 76582 81125 87025 103100 113410 121658 128875 153164 162250 174050 191455 226820 243316 257750 283525 304145 324500 348100 382910 435125 515500 567050 608290 669119 765820 870250 957275 1062961 1134100 1216580 1338238 1417625 1520725 1740500 1914550 2125922 2676476 2835250 3041450 3345595 3588911 3829100 4251844 4786375 5314805 5670500 6082900 6691190 7177822 7603625 9572750 10629610 11692571 13382380 14355644 15207250 16727975 17944555 19145500 21259220 23385142 26574025 30414500 33455950 35889110 39478021 46770284 53148050 58462855 62714699 66911900 71778220 78956042 83639875 89722775 106296100 116925710 125429398 132870125 157912084 167279750 179445550 197390105 233851420 250858796 265740250 292314275 313573495 334559500 358891100 394780210 448613875 531480500 584628550 627146990 689861689 789560420 897227750 986950525 1095912791 1169257100 1254293980 1379723378 1461571375 1567867475 1794455500 1973901050 2191825582 2759446756 2923142750 3135734950 3449308445 3700167241 3947802100 4383651164 4934752625 5479563955 5846285500 6271469900 6898616890 7400334482 7839337375 9869505250 10959127910 12055040701 13797233780 14800668964 15678674750 17246542225 18500836205 19739010500 21918255820 24110081402 27397819775 31357349500 34493084450 37001672410 40701839651 48220162804 54795639550 60275203505 64658854669 68986168900 74003344820 81403679302 86232711125 92504181025 109591279100 120550407010 129317709338 136989098875 162807358604 172465422250 185008362050 203509198255 241100814020 258635418676 273978197750 301376017525 323294273345 344930844500 370016724100 407018396510 462520905125 547956395500 602752035050 646588546690 711247401359 814036793020 925041810250 1017545991275 1205504070100 1293177093380 1422494802718 1506880087625 1616471366725 1850083620500 2035091982550 2844989605436 3013760175250 3232942733450 3556237006795 3814872425471 4070183965100 5087729956375 6027520350500 6465885466900 7112474013590 7629744850942 8082356833625 10175459912750 14224948027180 15259489701884 16164713667250 17781185033975 19074362127355 20350919825500 32329427334500 35562370067950 38148724254710 41963596680181 71124740135900 76297448509420 83927193360362 88905925169875 95371810636775 167854386720724 177811850339750 190743621273550 209817983400905 355623700679500 381487242547100 419635966801810 476859053183875 839271933603620 953718106367750 1049089917004525 1907436212735500 2098179834009050 4196359668018100 5245449585022625 10490899170045250 20981798340090500
• Sum of all divisors σ(n): 50901109356254976
• Sum of proper divisors (its aliquot sum) s(n): 29919311016164476
• 20981798340090500 is an abundant number, because the sum of its proper divisors (29919311016164476) is greater than itself. Its abundance is 8937512676073976

Bases of 20981798340090500

• Binary: 1001010100010101101010110011100110011110101101010000100₂
• Hexadecimal: 0x4A8AD59CCF5A84
• Base-36: 5QLFD39PKSK

Squares and roots of 20981798340090500

• 20981798340090500 squared (20981798340090500²) is 440235861584224461099548190250000
• 20981798340090500 cubed (20981798340090500³) is 9236940069836191913559267106666963296217625000000
• The square root of 20981798340090500 is 144850952.1545871645
• The cube root of 20981798340090500 is 275812.6850745865

Scales and comparisons

• 20,981,798,340,090,500 seconds is equal to 667,156,286 years, 13 weeks, 11 hours, 48 minutes, 20 seconds.
• To count from 1 to 20,981,798,340,090,500 would take you about two billion, one million, four hundred sixty-eight thousand, eight 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 20981798340090500 cubic inches would be around 22984.4 feet tall.

Recreational maths with 20981798340090500

• 20981798340090500 backwards is 00509004389718902
• The number of decimal digits it has is: 17
• The sum of 20981798340090500's digits is 65
• More coming soon!