21078242678358173

Names of 21078242678358173

• Cardinal: 21078242678358173 can be written as Twenty-one quadrillion, seventy-eight trillion, two hundred forty-two billion, six hundred seventy-eight million, three hundred fifty-eight thousand, one hundred seventy-three.

Scientific notation

• Scientific notation: 2.1078242678358173 × 10¹⁶

Factors of 21078242678358173

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 174

Divisors of 21078242678358173

• Number of divisors d(n): 180
• Complete list of divisors:
  1 7 11 49 59 77 97 343 413 539 649 679 1067 2401 2891 3481 3773 4543 4753 5723 7469 9409 16807 20237 24367 26411 31801 33271 38291 40061 52283 62953 65863 103499 141659 170569 184877 205379 222607 232897 268037 280427 337657 365981 440671 461041 555131 724493 991613 1193983 1437653 1558249 1630279 1876259 1962989 2259169 2363599 2561867 3084697 3227287 3714227 3885917 5071451 6106441 8357881 10063571 10907743 12117361 13133813 13740923 15814183 16545193 17933069 19921763 21592879 22591009 25999589 27201419 32752729 35500157 42745087 58505167 70444997 84821527 91936691 96186461 110699281 115816351 133290971 139452341 151150153 158137063 181997123 190409933 219139393 229269103 248501099 299215609 360280019 493114979 593750689 643556837 774894967 810714457 933036797 976166387 1058051071 1175384017 1273979861 1332869531 1533975751 1604883721 1739507693 1932411011 2094509263 2521960133 3451804853 4156254823 5424264769 5675001199 6531257579 6833164709 8227688119 8917859027 9330086717 10737830257 11234186047 12929224187 13526877077 14661564841 17653720931 21256521121 29093783761 37969853383 45718803053 47832152963 57593816833 62425013189 75164811799 78639302329 90504569309 94688139539 102630953887 114012249649 123576046517 148795647847 203656486327 320031621371 334825070741 403156717831 526153682593 550475116303 633531985163 662816976773 798085747543 865032325619 1041569534929 1254134746139 2240221349597 2822097024817 3683075778151 4434723896141 4639718837411 5586600232801 6055226279333 7290986744503 8778943222973 19754679173719 31043067272987 32478031861877 39106201629607 51036907211521 61452602560811 217301470910909 273743411407249 357258350480647 430168217925677 1916203879850743 3011177525479739 21078242678358173
• Sum of all divisors σ(n): 27573386106971232
• Sum of proper divisors (its aliquot sum) s(n): 6495143428613059
• 21078242678358173 is a deficient number, because the sum of its proper divisors (6495143428613059) is less than itself. Its deficiency is 14583099249745114

Bases of 21078242678358173

• Binary: 1001010111000101000110011001111010101010100000010011101₂
• Hexadecimal: 0x4AE28CCF55409D
• Base-36: 5RJM30ALGGT

Squares and roots of 21078242678358173

• 21078242678358173 squared (21078242678358173²) is 444292314407759926513542875897929
• 21078242678358173 cubed (21078242678358173³) is 9364901223216173088544273787893719812102850923717
• The square root of 21078242678358173 is 145183479.3575294263
• The cube root of 21078242678358173 is 276234.6368076171

Scales and comparisons

• 21,078,242,678,358,173 seconds is equal to 670,222,917 years, 46 weeks, 15 hours, 2 minutes, 53 seconds.
• To count from 1 to 21,078,242,678,358,173 would take you about two billion, ten million, six hundred sixty-eight thousand, seven hundred fifty-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 21078242678358173 cubic inches would be around 23019.6 feet tall.

Recreational maths with 21078242678358173

• 21078242678358173 backwards is 37185387624287012
• The number of decimal digits it has is: 17
• The sum of 21078242678358173's digits is 74
• More coming soon!