21204809770221

Names of 21204809770221

• Cardinal: 21204809770221 can be written as Twenty-one trillion, two hundred four billion, eight hundred nine million, seven hundred seventy thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 2.1204809770221 × 10¹³

Factors of 21204809770221

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4876

Divisors of 21204809770221

• Number of divisors d(n): 224
• Complete list of divisors:
  1 3 7 9 11 21 27 33 63 67 77 81 99 189 201 231 243 297 469 567 603 693 729 737 891 1407 1701 1809 2079 2089 2211 2673 2699 4221 5103 5159 5427 6237 6267 6633 8019 8097 12663 14623 15477 16281 18711 18801 18893 19899 22979 24291 29689 37989 43869 46431 48843 56133 56403 56679 59697 68937 72873 89067 113967 131607 139293 139963 160853 169209 170037 179091 180833 206811 207823 218619 267201 341901 394821 417879 419889 482559 507627 510111 537273 542499 620433 623469 655857 801603 979741 1184463 1253637 1259667 1265831 1447677 1522881 1530333 1539593 1627497 1861299 1870407 1967571 1989163 2404809 2939223 3553389 3760911 3779001 3797493 4343031 4590999 4618779 4882491 5583897 5611221 5638211 5967489 7214427 8817669 10660167 10777151 11337003 11392479 13029093 13772997 13856337 13924141 14647473 16751691 16833663 16914633 17902467 21643281 26453007 32331453 34011009 34177437 39087279 39467477 41569011 41772423 43942419 50500989 50743899 53707401 62020321 79359021 96994359 102033027 102532311 117261837 118402431 124707033 125317269 131827257 151502967 152231697 161122203 186060963 238077063 290983077 307596933 355207293 374121099 375951807 377760137 434142247 456695091 483366609 558182889 714231189 872949231 922790799 1065621879 1122363297 1127855421 1133280411 1302426741 1370085273 1450099827 1674548667 2618847693 2644320959 3196865637 3383566263 3399841233 3907280223 4110255819 4155361507 5023646001 7856543079 7932962877 9590596911 10150698789 10199523699 11721840669 12466084521 15070938003 23798888631 28771790733 29087530549 30598571097 35165522007 37398253563 45212814009 71396665893 87262591647 91795713291 105496566021 112194760689 214189997679 261787774941 275387139873 316489698063 336584282067 642569993037 785363324823 1009752846201 1927709979111 2356089974469 3029258538603 7068269923407 21204809770221
• Sum of all divisors σ(n): 40263391872000
• Sum of proper divisors (its aliquot sum) s(n): 19058582101779
• 21204809770221 is a deficient number, because the sum of its proper divisors (19058582101779) is less than itself. Its deficiency is 2146227668442

Bases of 21204809770221

• Binary: 100110100100100100001001001110110010011101101₂
• Hexadecimal: 0x1349212764ED
• Base-36: 7ILCS8TT9

Squares and roots of 21204809770221

• 21204809770221 squared (21204809770221²) is 449643957391259978818388841
• 21204809770221 cubed (21204809770221³) is 9534614580811024626041633206614640503861
• The square root of 21204809770221 is 4604868.0513366505
• The cube root of 21204809770221 is 27678.6429625205

Scales and comparisons

• 21,204,809,770,221 seconds is equal to 674,247 years, 18 weeks, 5 days, 10 minutes, 21 seconds.
• To count from 1 to 21,204,809,770,221 would take you about one million, six hundred eighty-five thousand, six hundred eighteen 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 21204809770221 cubic inches would be around 2306.6 feet tall.

Recreational maths with 21204809770221

• 21204809770221 backwards is 12207790840212
• The number of decimal digits it has is: 14
• The sum of 21204809770221's digits is 45
• More coming soon!