20421038764840

Names of 20421038764840

• Cardinal: 20421038764840 can be written as Twenty trillion, four hundred twenty-one billion, thirty-eight million, seven hundred sixty-four thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.042103876484 × 10¹³

Factors of 20421038764840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1108

Divisors of 20421038764840

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 103 140 196 206 245 280 392 412 490 515 721 824 980 991 1030 1442 1960 1982 2060 2884 3605 3964 4120 4955 5047 5768 6937 7210 7928 9910 10094 10609 13874 14420 19820 20188 21218 25235 27748 28840 34685 39640 40376 42436 48559 50470 53045 55496 69370 74263 84872 97118 100940 102073 106090 138740 148526 194236 201880 204146 212180 242795 277480 297052 371315 388472 408292 424360 485590 510365 519841 594104 714511 742630 816584 971180 982081 1020730 1039682 1429022 1485260 1942360 1964162 2041460 2079364 2599205 2858044 2970520 3572555 3928324 4082920 4158728 4910405 5001577 5198410 5716088 6874567 7145110 7856648 9820810 10003154 10396820 10513519 13749134 14290220 19641620 20006308 20793640 21027038 25007885 27498268 28580440 34372835 39283240 40012616 42054076 48121969 50015770 52567595 54996536 68745670 73594633 84108152 96243938 100031540 101154343 105135190 137491340 147189266 192487876 200063080 202308686 210270380 240609845 274982680 294378532 367973165 384975752 404617372 420540760 481219690 505771715 515162431 588757064 708080401 735946330 809234744 962439380 1011543430 1030324862 1416160802 1471892660 1924878760 2023086860 2060649724 2575812155 2832321604 2943785320 3540402005 4046173720 4121299448 4956562807 5151624310 5664643208 7080804010 9913125614 10303248620 10418897329 14161608020 19826251228 20606497240 20837794658 24782814035 28323216040 39652502456 41675589316 49565628070 52094486645 72932281303 83351178632 99131256140 104188973290 145864562606 198262512280 208377946580 291729125212 364661406515 416755893160 510525969121 583458250424 729322813030 1021051938242 1458645626060 2042103876484 2552629845605 2917291252120 4084207752968 5105259691210 10210519382420 20421038764840
• Sum of all divisors σ(n): 54027421181370
• Sum of proper divisors (its aliquot sum) s(n): 33606382416530
• 20421038764840 is an abundant number, because the sum of its proper divisors (33606382416530) is greater than itself. Its abundance is 13185343651690

Bases of 20421038764840

• Binary: 100101001001010100100110000101111001100101000₂
• Hexadecimal: 0x1292A4C2F328
• Base-36: 78LAN83L4

Squares and roots of 20421038764840

• 20421038764840 squared (20421038764840²) is 417018824235097992820225600
• 20421038764840 cubed (20421038764840³) is 8515957575372934573077902974794147904000
• The square root of 20421038764840 is 4518964.3464891377
• The cube root of 20421038764840 is 27333.3341042151

Scales and comparisons

• 20,421,038,764,840 seconds is equal to 649,325 years, 45 weeks, 8 hours, 40 seconds.
• To count from 1 to 20,421,038,764,840 would take you about one million, six hundred twenty-three thousand, three hundred fourteen 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 20421038764840 cubic inches would be around 2277.8 feet tall.

Recreational maths with 20421038764840

• 20421038764840 backwards is 04846783012402
• 20421038764840 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20421038764840's digits is 49
• More coming soon!