13209478975

Names of 13209478975

• Cardinal: 13209478975 can be written as Thirteen billion, two hundred nine million, four hundred seventy-eight thousand, nine hundred seventy-five.

Scientific notation

• Scientific notation: 1.3209478975 × 10¹⁰

Factors of 13209478975

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 549

Divisors of 13209478975

• Number of divisors d(n): 192
• Complete list of divisors:
  1 5 7 11 17 25 29 31 35 55 77 85 119 145 155 175 187 203 217 275 319 341 385 425 449 493 527 595 725 775 899 935 1015 1085 1309 1595 1705 1925 2233 2245 2387 2465 2635 2975 3143 3451 3689 4495 4675 4939 5075 5423 5425 5797 6293 6545 7633 7975 8525 9889 11165 11225 11935 12325 13021 13175 13919 15283 15715 17255 18445 22475 24695 27115 28985 31465 32725 34573 37961 38165 40579 49445 53431 55825 59675 65105 69223 69595 76415 78575 83963 86275 91147 92225 97433 106981 123475 135575 143231 144925 153109 157325 168113 172865 189805 190825 202895 221357 236623 247225 267155 325525 346115 347975 382075 403651 419815 455735 487165 534905 587741 716155 765545 840565 864325 949025 1002617 1014475 1071763 1106785 1176791 1183115 1335775 1549499 1656361 1730575 2018255 2099075 2278675 2434927 2435825 2602853 2674525 2825557 2938705 3580775 3827725 4202825 4440161 5013085 5358815 5533925 5883955 5915575 6862067 7747495 8281805 10091275 12174635 13014265 14127785 14693525 17044489 18219971 22200805 25065425 26794075 29419775 31081127 34310335 38737475 41409025 48034469 60873175 65071325 70638925 75482737 85222445 91099855 111004025 155405635 171551675 240172345 377413685 426112225 455499275 528379159 777028175 1200861725 1887068425 2641895795 13209478975
• Sum of all divisors σ(n): 23141376000
• Sum of proper divisors (its aliquot sum) s(n): 9931897025
• 13209478975 is a deficient number, because the sum of its proper divisors (9931897025) is less than itself. Its deficiency is 3277581950

Bases of 13209478975

• Binary: 1100010011010110001010011100111111₂
• Hexadecimal: 0x31358A73F
• Base-36: 62GKZ7J

Squares and roots of 13209478975

• 13209478975 squared (13209478975²) is 174490334790967050625
• 13209478975 cubed (13209478975³) is 2304926408761990275148698109375
• The square root of 13209478975 is 114932.4974713419
• The cube root of 13209478975 is 2363.8970716431

Scales and comparisons

• 13,209,478,975 seconds is equal to 420 years, 1 week, 11 hours, 42 minutes, 55 seconds.
• To count from 1 to 13,209,478,975 would take you about eight hundred forty 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 13209478975 cubic inches would be around 197 feet tall.

Recreational maths with 13209478975

• 13209478975 backwards is 57987490231
• 13209478975 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13209478975's digits is 55
• More coming soon!