138665393343

Names of 138665393343

• Cardinal: 138665393343 can be written as One hundred thirty-eight billion, six hundred sixty-five million, three hundred ninety-three thousand, three hundred forty-three.

Scientific notation

• Scientific notation: 1.38665393343 × 10¹¹

Factors of 138665393343

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 982

Divisors of 138665393343

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 19 27 57 131 171 361 393 513 829 1083 1179 2487 2489 3249 3537 7461 7467 9747 15751 17161 22383 22401 47253 47291 51483 67203 108599 141759 141873 154449 299269 325797 326059 425277 425619 463347 897807 977391 978177 1276857 2063381 2693421 2932173 2934531 6190143 6195121 8080263 8803593 14226469 18570429 18585363 39204239 42679407 55711287 55756089 117612717 128038221 167268267 270302911 352838151 384114663 810908733 1058514453 2432726199 5135755309 7298178597 15407265927 46221797781 138665393343
• Sum of all divisors σ(n): 218742615600
• Sum of proper divisors (its aliquot sum) s(n): 80077222257
• 138665393343 is a deficient number, because the sum of its proper divisors (80077222257) is less than itself. Its deficiency is 58588171086

Bases of 138665393343

• Binary: 10000001001001000110011111110010111111₂
• Hexadecimal: 0x204919FCBF
• Base-36: 1RP9SM9R

Squares and roots of 138665393343

• 138665393343 squared (138665393343²) is 19228091310968908715649
• 138665393343 cubed (138665393343³) is 2666270844870624257498929524524607
• The square root of 138665393343 is 372378.0247852979
• The cube root of 138665393343 is 5175.9415414347

Scales and comparisons

• 138,665,393,343 seconds is equal to 4,409 years, 6 weeks, 5 days, 12 hours, 49 minutes, 3 seconds.
• To count from 1 to 138,665,393,343 would take you about eight thousand, eight hundred eighteen 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 138665393343 cubic inches would be around 431.3 feet tall.

Recreational maths with 138665393343

• 138665393343 backwards is 343393566831
• The number of decimal digits it has is: 12
• The sum of 138665393343's digits is 54
• More coming soon!