21628643837220

Names of 21628643837220

• Cardinal: 21628643837220 can be written as Twenty-one trillion, six hundred twenty-eight billion, six hundred forty-three million, eight hundred thirty-seven thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.162864383722 × 10¹³

Factors of 21628643837220

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1213

Divisors of 21628643837220

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 67 70 84 90 105 108 126 134 135 140 180 189 201 210 252 268 270 315 335 378 402 420 469 540 603 630 670 756 804 938 945 1005 1129 1206 1260 1340 1407 1809 1876 1890 2010 2258 2345 2412 2814 3015 3387 3618 3780 4020 4221 4489 4516 4690 5628 5645 6030 6774 7035 7236 7903 8442 8978 9045 9380 10161 11290 12060 12663 13467 13548 14070 15806 16884 16935 17956 18090 20322 21105 22445 22580 23709 25326 26934 28140 30483 31423 31612 33870 36180 39515 40401 40644 42210 44890 47418 50652 50805 53868 60966 62846 63315 67335 67740 71127 75643 79030 80802 84420 89780 94269 94836 101610 118545 121203 121932 125692 126630 134670 142254 151286 152415 157115 158060 161604 188538 202005 203220 213381 226929 237090 242406 253260 269340 282807 284508 302572 304830 314230 355635 377076 378215 404010 426762 453858 471345 474180 484812 529501 565614 606015 609660 628460 680787 711270 756430 808020 848421 853524 907716 942690 1059002 1066905 1131228 1134645 1212030 1274641 1361574 1414035 1422540 1512860 1588503 1696842 1885380 2042361 2118004 2133810 2269290 2424060 2549282 2647505 2723148 2828070 3177006 3393684 3403935 3823923 4084722 4242105 4267620 4538580 4765509 5068081 5098564 5295010 5656140 6354012 6373205 6807870 7647846 7942515 8169444 8484210 8922487 9531018 10136162 10211805 10590020 11471769 12746410 13615740 14296527 15204243 15295692 15885030 16968420 17844974 19062036 19119615 20272324 20423610 22943538 23827545 25340405 25492820 26767461 28593054 30408486 31770060 34415307 35476567 35689948 38239230 40847220 44612435 45612729 45887076 47655090 50680810 53534922 57186108 57358845 60816972 68830614 70953134 71482635 76021215 76478460 80302383 85400947 89224870 91225458 95310180 101361620 106429701 107069844 114717690 133837305 136838187 137661228 141906268 142965270 152042430 160604766 170801894 172076535 177382835 178449740 182450916 212859402 228063645 229435380 240907149 256202841 267674610 273676374 285930540 304084860 319289103 321209532 341603788 344153070 354765670 401511915 425718804 427004735 456127290 481814298 512405682 532148505 535349220 547352748 597806629 638578206 684190935 688306140 709531340 768608523 803023830 854009470 912254580 957867309 963628596 1024811364 1064297010 1195613258 1204535745 1277156412 1281014205 1368381870 1537217046 1596445515 1606047660 1708018940 1793419887 1915734618 2128594020 2305825569 2391226516 2409071490 2562028410 2736763740 2989033145 3074434092 3192891030 3586839774 3831469236 3843042615 4611651138 4789336545 4818142980 5124056820 5380259661 5721863449 5978066290 6385782060 7173679548 7686085230 8967099435 9223302276 9578673090 10760519322 11443726898 11529127845 11956132580 15372170460 16140778983 17165590347 17934198870 19157346180 21521038644 22887453796 23058255690 26901298305 28609317245 32281557966 34331180694 35868397740 40053044143 46116511380 51496771041 53802596610 57218634490 64563115932 68662361388 80106088286 80703894915 85827951735 102993542082 107605193220 114437268980 120159132429 154490313123 160212176572 161407789830 171655903470 200265220715 205987084164 240318264858 257483855205 308980626246 322815579660 343311806940 360477397287 400530441430 480636529716 514967710410 600795662145 617961252492 720954794574 772451565615 801060882860 1029935420820 1081432191861 1201591324290 1441909589148 1544903131230 1802386986435 2162864383722 2403182648580 3089806262460 3604773972870 4325728767444 5407160959305 7209547945740 10814321918610 21628643837220
• Sum of all divisors σ(n): 78135972727680
• Sum of proper divisors (its aliquot sum) s(n): 56507328890460
• 21628643837220 is an abundant number, because the sum of its proper divisors (56507328890460) is greater than itself. Its abundance is 34878685053240

Bases of 21628643837220

• Binary: 100111010101111001111101000100000010100100100₂
• Hexadecimal: 0x13ABCFA20524
• Base-36: 7O0283SX0

Squares and roots of 21628643837220

• 21628643837220 squared (21628643837220²) is 467798234237314685857328400
• 21628643837220 cubed (21628643837220³) is 10117841395999294287229906190833683048000
• The square root of 21628643837220 is 4650660.5807368915
• The cube root of 21628643837220 is 27861.8380191279

Scales and comparisons

• 21,628,643,837,220 seconds is equal to 687,723 years, 50 weeks, 3 days, 21 hours, 27 minutes.
• To count from 1 to 21,628,643,837,220 would take you about one million, seven hundred nineteen thousand, three hundred nine 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 21628643837220 cubic inches would be around 2321.8 feet tall.

Recreational maths with 21628643837220

• 21628643837220 backwards is 02273834682612
• 21628643837220 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21628643837220's digits is 54
• More coming soon!