20161643640021

Names of 20161643640021

• Cardinal: 20161643640021 can be written as Twenty trillion, one hundred sixty-one billion, six hundred forty-three million, six hundred forty thousand and twenty-one.

Scientific notation

• Scientific notation: 2.0161643640021 × 10¹³

Factors of 20161643640021

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1356

Divisors of 20161643640021

• Number of divisors d(n): 240
• Complete list of divisors:
  1 3 9 13 27 31 39 81 93 117 169 223 257 279 351 403 507 669 771 829 837 1053 1209 1521 2007 2313 2487 2511 2899 3341 3627 4563 5239 6021 6913 6939 7461 7967 8697 10023 10777 10881 13689 15717 18063 20739 20817 22383 23901 25699 26091 30069 32331 32643 37687 43433 47151 57311 62217 67149 71703 77097 78273 89869 90207 96993 103571 113061 130299 140101 141453 171933 184867 186651 213053 215109 231291 234819 269607 270621 290979 310713 334087 339183 390897 420303 424359 515799 554601 559953 639159 645327 693873 745043 808821 872937 932139 1002261 1017549 1168297 1172691 1260909 1346423 1547397 1663803 1776641 1917477 2081619 2235129 2403271 2426463 2769689 2796417 3006783 3052647 3504891 3518073 3782727 4039269 4343131 4642191 4991409 5329923 5730877 5752431 6604643 6705387 7209813 7279389 8309067 8389251 9020349 9685559 10514673 11348181 12117807 13029393 14974227 15989769 17192631 17257293 19813929 20116161 21629439 23096333 24927201 27061047 29056677 31242523 31544019 36005957 36353421 39088179 47510819 47969307 51577893 59441787 60348483 64888317 69288999 74501401 74781603 85860359 87170031 93727569 94632057 108017871 109060263 117264537 142532457 143907921 154733679 178325361 194664951 207866997 223504203 224344809 257581077 261510093 281182707 300252329 324053613 351793611 427597371 464201037 534976083 617640647 623600991 670512609 772743231 784530279 843548121 900756987 968518213 972160839 1116184667 1282792113 1472835389 1852921941 1870802973 2011537827 2318229693 2530644363 2702270961 2905554639 2916482517 3348554001 3848376339 4418506167 5558765823 6034613481 6954689079 8029328411 8106812883 8716663917 10045662003 13255518501 16676297469 19146860057 24087985233 24320438649 26149991751 30136986009 39766555503 50028892407 57440580171 72263955699 78449975253 90410958027 119299666509 172321740513 216791867097 248909180741 516965221539 650375601291 746727542223 1550895664617 2240182626669 6720547880007 20161643640021
• Sum of all divisors σ(n): 33988520079360
• Sum of proper divisors (its aliquot sum) s(n): 13826876439339
• 20161643640021 is a deficient number, because the sum of its proper divisors (13826876439339) is less than itself. Its deficiency is 6334767200682

Bases of 20161643640021

• Binary: 100100101011000111111100110110111010011010101₂
• Hexadecimal: 0x12563F9B74D5
• Base-36: 75A4Q2CB9

Squares and roots of 20161643640021

• 20161643640021 squared (20161643640021²) is 406491874267199238632880441
• 20161643640021 cubed (20161643640021³) is 8195544311539493519555067422179335729261
• The square root of 20161643640021 is 4490171.8942620671
• The cube root of 20161643640021 is 27217.1080917363

Scales and comparisons

• 20,161,643,640,021 seconds is equal to 641,077 years, 46 weeks, 6 days, 22 hours, 40 minutes, 21 seconds.
• To count from 1 to 20,161,643,640,021 would take you about one million, six hundred two thousand, six hundred ninety-four 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 20161643640021 cubic inches would be around 2268.1 feet tall.

Recreational maths with 20161643640021

• 20161643640021 backwards is 12004634616102
• The number of decimal digits it has is: 14
• The sum of 20161643640021's digits is 36
• More coming soon!