21855403891013

Names of 21855403891013

• Cardinal: 21855403891013 can be written as Twenty-one trillion, eight hundred fifty-five billion, four hundred three million, eight hundred ninety-one thousand and thirteen.

Scientific notation

• Scientific notation: 2.1855403891013 × 10¹³

Factors of 21855403891013

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 72

Divisors of 21855403891013

• Number of divisors d(n): 216
• Complete list of divisors:
  1 7 11 17 37 49 77 119 121 187 259 289 343 407 539 629 833 847 1309 1331 1369 1813 2023 2057 2849 3179 3773 4403 4477 5831 5929 6919 9163 9317 9583 10693 12691 14161 14399 14641 15059 19943 22253 22627 23273 30821 31339 34969 41503 48433 49247 64141 65219 67081 74851 76109 99127 100793 102487 105413 117623 139601 155771 158389 161051 162911 165649 215747 219373 244783 248897 256003 339031 344729 384659 395641 456533 469567 523957 532763 541717 705551 717409 737891 823361 837199 1090397 1108723 1127357 1140377 1159543 1293853 1535611 1713481 1742279 1792021 1822139 2373217 2413103 2692613 2737867 2769487 2816033 3667699 3729341 3792019 4231249 4352051 5021863 5165237 5763527 5860393 5958887 7761061 7891499 7982639 8116801 9056971 9209189 11994367 12195953 12544147 12754973 14232383 16891721 18848291 19165069 19386409 19712231 20043529 26105387 26544133 29618743 30464357 30976363 40344689 41022751 41712209 46543739 47872561 55240493 56817607 63398797 64464323 85371671 87809029 89284811 99626681 101301079 131938037 134155483 135704863 137985617 140304703 156556213 185808931 207331201 213250499 216834541 220478819 287159257 291985463 325806173 335107927 340739993 443791579 451250261 526598171 624993677 697386767 709107553 939088381 965899319 982132921 1095893491 1451318407 1492753493 1517841787 1543351733 1722118343 2043898241 2280643211 2345755489 2385179951 3158751827 3686187197 3748139923 4881707369 4963752871 5792579881 6874930447 7671254437 10624892509 10803462131 12054828401 15964502477 16420288423 16696259657 25803310379 26236979461 34746270097 40548059167 53698781059 63718378691 75624234917 84383798807 116873817599 180623172653 183658856227 283836414169 446028650837 590686591649 1285611993589 1986854899183 3122200555859 21855403891013
• Sum of all divisors σ(n): 30608942817600
• Sum of proper divisors (its aliquot sum) s(n): 8753538926587
• 21855403891013 is a deficient number, because the sum of its proper divisors (8753538926587) is less than itself. Its deficiency is 13101864964426

Bases of 21855403891013

• Binary: 100111110000010011011100101011101100101000101₂
• Hexadecimal: 0x13E09B95D945
• Base-36: 7QW8F6Q85

Squares and roots of 21855403891013

• 21855403891013 squared (21855403891013²) is 477658679239306180382166169
• 21855403891013 cubed (21855403891013³) is 10439423356822862777694853337316131739197
• The square root of 21855403891013 is 4674976.3519201891
• The cube root of 21855403891013 is 27958.8698378455

Scales and comparisons

• 21,855,403,891,013 seconds is equal to 694,934 years, 12 weeks, 3 days, 13 hours, 16 minutes, 53 seconds.
• To count from 1 to 21,855,403,891,013 would take you about one million, seven hundred thirty-seven thousand, three hundred thirty-five 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 21855403891013 cubic inches would be around 2329.9 feet tall.

Recreational maths with 21855403891013

• 21855403891013 backwards is 31019830455812
• The number of decimal digits it has is: 14
• The sum of 21855403891013's digits is 50
• More coming soon!