21131254312632009

Names of 21131254312632009

• Cardinal: 21131254312632009 can be written as Twenty-one quadrillion, one hundred thirty-one trillion, two hundred fifty-four billion, three hundred twelve million, six hundred thirty-two thousand and nine.

Scientific notation

• Scientific notation: 2.1131254312632009 × 10¹⁶

Factors of 21131254312632009

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2412652

Divisors of 21131254312632009

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 13 19 21 39 57 63 91 117 133 171 247 273 399 741 819 1197 1729 2223 5187 15561 894521 1518089 2683563 4554267 6261647 8050689 10626623 11628773 13662801 16995899 18784941 19735157 28843691 31879869 34886319 50987697 56354823 59205471 81401411 86531073 95639607 104658957 118971293 138146099 152963091 177616413 201905837 220946687 244204233 259593219 356913879 374967983 414438297 605717511 662840061 732612699 1070741637 1124903949 1243314891 1546626809 1817152533 1988520183 2624775881 3374711847 4639880427 7874327643 13919641281 23622982929 1357962490369 4073887471107 9505737432583 12221662413321 17653512374797 25801287317011 28517212297749 52960537124391 77403861951033 85551636893247 123574586623579 158881611373173 180609011219077 232211585853099 335416735121143 370723759870737 541827033657231 1006250205363429 1112171279612211 1625481100971693 2347917145848001 3018750616090287 7043751437544003 21131254312632009
• Sum of all divisors σ(n): 39543937974777600
• Sum of proper divisors (its aliquot sum) s(n): 18412683662145591
• 21131254312632009 is a deficient number, because the sum of its proper divisors (18412683662145591) is less than itself. Its deficiency is 2718570650486418

Bases of 21131254312632009

• Binary: 1001011000100101100001110001010111101100111111011001001₂
• Hexadecimal: 0x4B12C38AF67EC9
• Base-36: 5S2EK7SX809

Squares and roots of 21131254312632009

• 21131254312632009 squared (21131254312632009²) is 446529908825128879157345051376081
• 21131254312632009 cubed (21131254312632009³) is 9435737061580182402796035421150027653486417576729
• The square root of 21131254312632009 is 145365932.4347765087
• The cube root of 21131254312632009 is 276466.0190068139

Scales and comparisons

• 21,131,254,312,632,009 seconds is equal to 671,908,523 years, 45 weeks, 5 days, 12 hours, 9 seconds.
• To count from 1 to 21,131,254,312,632,009 would take you about two billion, fifteen million, seven hundred twenty-five thousand, five hundred seventy-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 21131254312632009 cubic inches would be around 23038.8 feet tall.

Recreational maths with 21131254312632009

• 21131254312632009 backwards is 90023621345213112
• The number of decimal digits it has is: 17
• The sum of 21131254312632009's digits is 45
• More coming soon!