21020818294172983

Names of 21020818294172983

• Cardinal: 21020818294172983 can be written as Twenty-one quadrillion, twenty trillion, eight hundred eighteen billion, two hundred ninety-four million, one hundred seventy-two thousand, nine hundred eighty-three.

Scientific notation

• Scientific notation: 2.1020818294172983 × 10¹⁶

Factors of 21020818294172983

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 176

Divisors of 21020818294172983

• Number of divisors d(n): 168
• Complete list of divisors:
  1 11 13 73 79 121 143 169 803 869 949 1027 1573 1859 2197 5767 6241 8833 9559 10439 11297 12337 13351 20449 24167 28561 63437 68651 74971 81133 114829 124267 135707 146861 160381 173563 265837 314171 371293 455593 493039 697807 755161 824681 892463 974623 1054729 1492777 1615471 1764191 1909193 2084953 2256319 3455881 4084223 4826809 5011523 5423429 5922709 6409507 9071491 9817093 10720853 11602019 12670099 13711477 19406101 21001123 22934483 24819509 27104389 29332147 35991847 44926453 53094899 55126753 59657719 65149799 70504577 76995217 83323591 117929383 127622209 139371089 150826247 164711287 178249201 252279313 273014599 298148279 322653617 352357057 381317911 395910317 467894011 584043889 716647789 775550347 846947387 916559501 1000937821 1083206683 1533081979 1659088717 1811824157 1960741211 2141246731 2317239613 3279631069 3549189787 3875927627 4194497021 4355013487 5146834121 6082622143 9316421257 10082154511 11010316031 11915273513 13012191673 14081686879 19930065727 21568153321 23553714041 25489635743 27836207503 30124114969 42635203897 46139467231 56615175331 66908843573 79074087859 121113476341 131068008643 143134108403 154898555669 169158491749 183061929427 259090854451 280385993173 306198282533 331365264659 735997279303 869814966449 1027963142167 1574475192433 1703884112359 1860743409239 2013681223697 2199060392737 2379805082551 3368181107863 3645017911249 9567964630939 11307594563837 13363520848171 20468177501629 22150493460667 24189664320107 26177855908061 124383540202207 146998729329881 173725771026223 266086307521177 287956414988671 1616986022628691 1910983481288453 21020818294172983
• Sum of all divisors σ(n): 25699183488628160
• Sum of proper divisors (its aliquot sum) s(n): 4678365194455177
• 21020818294172983 is a deficient number, because the sum of its proper divisors (4678365194455177) is less than itself. Its deficiency is 16342453099717806

Bases of 21020818294172983

• Binary: 1001010101011100101001010100111010011111110110100110111₂
• Hexadecimal: 0x4AAE52A74FED37
• Base-36: 5QZ9ALYWLYV

Squares and roots of 21020818294172983

• 21020818294172983 squared (21020818294172983²) is 441874801756637558857931927118289
• 21020818294172983 cubed (21020818294172983³) is 9288569916499986962000585635418725751727668986087
• The square root of 21020818294172983 is 144985579.6076733385
• The cube root of 21020818294172983 is 275983.5559331027

Scales and comparisons

• 21,020,818,294,172,983 seconds is equal to 668,397,000 years, 4 weeks, 6 days, 9 hours, 49 minutes, 43 seconds.
• To count from 1 to 21,020,818,294,172,983 would take you about two billion, five million, one hundred ninety-one thousand 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 21020818294172983 cubic inches would be around 22998.6 feet tall.

Recreational maths with 21020818294172983

• 21020818294172983 backwards is 38927149281802012
• The number of decimal digits it has is: 17
• The sum of 21020818294172983's digits is 67
• More coming soon!