138865394547329021

Names of 138865394547329021

• Cardinal: 138865394547329021 can be written as One hundred thirty-eight quadrillion, eight hundred sixty-five trillion, three hundred ninety-four billion, five hundred forty-seven million, three hundred twenty-nine thousand and twenty-one.

Scientific notation

• Scientific notation: 1.38865394547329021 × 10¹⁷

Factors of 138865394547329021

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 451

Divisors of 138865394547329021

• Number of divisors d(n): 192
• Complete list of divisors:
  1 11 13 37 41 121 143 349 407 451 481 533 1369 1517 1573 3839 4477 4537 4961 5291 5863 12913 14309 15059 16687 17797 19721 42229 49907 50653 56129 58201 64493 121801 142043 157399 165649 167869 183557 186017 195767 216931 477781 529433 548977 557183 617419 658489 729677 1339811 1562473 1583413 1731389 1846559 2046187 2076773 2153437 2386241 4506637 4993841 5255591 5823763 6129013 6211153 6791609 6882629 7243379 8026447 14737921 17417543 17677897 19589021 20312149 22508057 22844503 26998049 42508549 49573007 54932251 57811501 58586281 64061393 64919933 68322683 75708919 79677169 88290917 166745569 184772117 191592973 194456867 215479231 229812661 251289533 254657273 296978539 467594039 545303077 552611137 604254761 644449091 714119263 724793777 751549513 832798109 1572816313 1742850509 1834201259 2032493287 2139025537 2167692397 2370271541 2402037521 2527939271 2801230003 3266763929 5143534429 6078722507 6169586053 6836568329 7088940001 7855311893 7972731547 9422319101 17300979443 19171355599 20176213849 20446612069 22357426157 22657056617 23844616367 26422412731 27807331981 30813530033 58194203581 64485468833 66865947577 67865446583 75202251619 80204618689 87700047017 88875388277 103645510111 190310773873 210884911589 224912732759 249227622787 252953028173 262290780037 290646540041 640136239391 709340157163 746519912413 756524646553 827224767809 838311094829 882250805579 977629271047 1140100611221 2153185532497 2385962346821 2474040060349 2741503850657 2782483309903 3288389366249 7041498633301 7802741728793 8321771112083 9221422043119 9704758861369 10753921981517 23685040857467 26245585815031 27991411922461 30607316408933 31017510508673 36172283028739 88280606832377 91539482232913 101435642474309 260535449432137 288701443965341 307905531147071 341192615595403 397895113316129 971086675156147 1147647888820901 3386960842617781 3753118771549433 10681953426717617 12624126777029911 138865394547329021
• Sum of all divisors σ(n): 173562379141368000
• Sum of proper divisors (its aliquot sum) s(n): 34696984594038979
• 138865394547329021 is a deficient number, because the sum of its proper divisors (34696984594038979) is less than itself. Its deficiency is 104168409953290042

Bases of 138865394547329021

• Binary: 111101101010110010101011100110001100101101000011111111101₂
• Hexadecimal: 0x1ED5957319687FD
• Base-36: 11ZBO9KJ8PVH

Squares and roots of 138865394547329021

• 138865394547329021 squared (138865394547329021²) is 19283597802785356597167605228818441
• 138865394547329021 cubed (138865394547329021³) is 2677824417175795548052439083599969706734432299276261
• The square root of 138865394547329021 is 372646473.9499476613
• The cube root of 138865394547329021 is 517842.8817262309

Scales and comparisons

• 138,865,394,547,329,021 seconds is equal to 4,415,490,007 years, 38 weeks, 2 days, 7 hours, 23 minutes, 41 seconds.
• To count from 1 to 138,865,394,547,329,021 would take you about thirteen billion, two hundred forty-six million, four hundred seventy thousand and twenty-three 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 138865394547329021 cubic inches would be around 43153.6 feet tall.

Recreational maths with 138865394547329021

• 138865394547329021 backwards is 120923745493568831
• The number of decimal digits it has is: 18
• The sum of 138865394547329021's digits is 80
• More coming soon!