1988841218653826761

Names of 1988841218653826761

• Cardinal: 1988841218653826761 can be written as One quintillion, nine hundred eighty-eight quadrillion, eight hundred forty-one trillion, two hundred eighteen billion, six hundred fifty-three million, eight hundred twenty-six thousand, seven hundred sixty-one.

Scientific notation

• Scientific notation: 1.988841218653826761 × 10¹⁸

Factors of 1988841218653826761

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 694

Divisors of 1988841218653826761

• Number of divisors d(n): 135
• Complete list of divisors:
  1 7 31 49 109 217 547 763 961 1519 3379 3829 5341 6727 11881 16957 23653 26803 47089 59623 83167 104749 118699 165571 299209 368311 417361 525667 582169 733243 830893 1295029 1848313 2094463 2578177 2921527 3679669 5132701 6498907 9065203 9275479 11417641 12938191 14661241 18047239 25757683 32613781 40145899 45492349 57297703 63456421 64928353 79923487 90567337 141158161 201466117 228296467 281021293 287539849 318446443 401083921 454498471 559464409 708380863 988107127 1011027211 1244522869 1410262819 1598075269 1967149051 2012778943 2807587447 3554902129 4375902991 4958666041 6245449627 6916749889 7077190477 8711660083 9871839733 14089452601 21959806753 24884314903 30631320937 31341843541 34710662287 43718147389 49540333339 60981620581 77213514067 110201965999 135652992721 153718647271 174190204321 214419246559 219392904787 306027031723 387484332061 540494598469 680754009343 771413761993 949570949047 1076030530897 1535750333509 2393618936077 2712390324427 3416260945969 3783462189283 4765278065401 5399896333951 6646996643329 12012014293891 16755332552539 18986732270989 23913826621783 33356946457807 42235792194649 74202187018387 84084100057237 117287327867773 167396786352481 295650545362543 372372443110621 519415309128709 588588700400659 1309309558034119 2069553817537801 2606607101774347 3635907163900963 9165166906238833 18246249712420429 40588596299057689 64156168343671831 284120174093403823 1988841218653826761
• Sum of all divisors σ(n): 2417142040708823217
• Sum of proper divisors (its aliquot sum) s(n): 428300822054996456
• 1988841218653826761 is a deficient number, because the sum of its proper divisors (428300822054996456) is less than itself. Its deficiency is 1560540396598830305

Bases of 1988841218653826761

• Binary: 1101110011001110010001000110100010000100001000010111011001001₂
• Hexadecimal: 0x1B99C88D10842EC9
• Base-36: F3YXDEM3XTJD

Squares and roots of 1988841218653826761

• 1988841218653826761 squared (1988841218653826761²) is 3955489393016438747843959229399751121
• 1988841218653826761 cubed (1988841218653826761³) is 7866840344779099551290168913999454024761000627649549081
• 1988841218653826761 is a perfect square number. Its square root is 1410262819
• The cube root of 1988841218653826761 is 1257573.4812139981

Scales and comparisons

• 1,988,841,218,653,826,761 seconds is equal to 63,238,998,863 years, 19 weeks, 6 days, 3 hours, 26 minutes, 1 second.
• To count from 1 to 1,988,841,218,653,826,761 would take you about two hundred twenty-one billion, three hundred thirty-six million, four hundred ninety-six thousand and twenty-one 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 1988841218653826761 cubic inches would be around 104797.8 feet tall.

Recreational maths with 1988841218653826761

• 1988841218653826761 backwards is 1676283568121488891
• The number of decimal digits it has is: 19
• The sum of 1988841218653826761's digits is 94
• More coming soon!