13138942656

Names of 13138942656

• Cardinal: 13138942656 can be written as Thirteen billion, one hundred thirty-eight million, nine hundred forty-two thousand, six hundred fifty-six.

Scientific notation

• Scientific notation: 1.3138942656 × 10¹⁰

Factors of 13138942656

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 238492

Divisors of 13138942656

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 41 42 48 56 64 82 84 96 112 123 164 168 192 224 246 287 328 336 448 492 574 656 672 861 984 1148 1312 1344 1722 1968 2296 2624 3444 3936 4592 6888 7872 9184 13776 18368 27552 55104 238439 476878 715317 953756 1430634 1669073 1907512 2861268 3338146 3815024 5007219 5722536 6676292 7630048 9775999 10014438 11445072 13352584 15260096 19551998 20028876 22890144 26705168 29327997 39103996 40057752 45780288 53410336 58655994 68431993 78207992 80115504 106820672 117311988 136863986 156415984 160231008 205295979 234623976 273727972 312831968 320462016 410591958 469247952 547455944 625663936 821183916 938495904 1094911888 1642367832 1876991808 2189823776 3284735664 4379647552 6569471328 13138942656
• Sum of all divisors σ(n): 40698846720
• Sum of proper divisors (its aliquot sum) s(n): 27559904064
• 13138942656 is an abundant number, because the sum of its proper divisors (27559904064) is greater than itself. Its abundance is 14420961408

Bases of 13138942656

• Binary: 1100001111001001000101101011000000₂
• Hexadecimal: 0x30F245AC0
• Base-36: 61AL51C

Squares and roots of 13138942656

• 13138942656 squared (13138942656²) is 172631814117656334336
• 13138942656 cubed (13138942656³) is 2268199506293137813955867836416
• The square root of 13138942656 is 114625.2269616075
• The cube root of 13138942656 is 2359.6819603979

Scales and comparisons

• 13,138,942,656 seconds is equal to 417 years, 40 weeks, 3 days, 2 hours, 17 minutes, 36 seconds.
• To count from 1 to 13,138,942,656 would take you about eight hundred thirty-five 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 13138942656 cubic inches would be around 196.6 feet tall.

Recreational maths with 13138942656

• 13138942656 backwards is 65624983131
• 13138942656 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13138942656's digits is 48
• More coming soon!