138072108231909

Names of 138072108231909

• Cardinal: 138072108231909 can be written as One hundred thirty-eight trillion, seventy-two billion, one hundred eight million, two hundred thirty-one thousand, nine hundred nine.

Scientific notation

• Scientific notation: 1.38072108231909 × 10¹⁴

Factors of 138072108231909

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2769

Divisors of 138072108231909

• Number of divisors d(n): 56
• Complete list of divisors:
  1 3 9 27 81 243 433 729 1299 2333 3897 6999 11691 20997 35073 62991 105219 187489 188973 315657 562467 566919 1010189 1687401 1700757 3030567 5062203 9091701 15186609 27275103 45559827 81182737 81825309 136679481 243548211 245475927 437411837 730644633 736427781 1312235511 2191933899 3936706533 6575801697 11810119599 19727405091 35430358797 59182215273 106291076391 189399325421 318873229173 568197976263 1704593928789 5113781786367 15341345359101 46024036077303 138072108231909
• Sum of all divisors σ(n): 207581598640920
• Sum of proper divisors (its aliquot sum) s(n): 69509490409011
• 138072108231909 is a deficient number, because the sum of its proper divisors (69509490409011) is less than itself. Its deficiency is 68562617822898

Bases of 138072108231909

• Binary: 11111011001001101101010111101101110110011100101₂
• Hexadecimal: 0x7D936AF6ECE5
• Base-36: 1CXXG8BPB9

Squares and roots of 138072108231909

• 138072108231909 squared (138072108231909²) is 19063907071603993042125784281
• 138072108231909 cubed (138072108231909³) is 2632193840513561885612250259237282854822429
• The square root of 138072108231909 is 11750408.8538190449
• The cube root of 138072108231909 is 51685.4916822573

Scales and comparisons

• 138,072,108,231,909 seconds is equal to 4,390,265 years, 49 weeks, 5 days, 5 hours, 45 minutes, 9 seconds.
• To count from 1 to 138,072,108,231,909 would take you about ten million, nine hundred seventy-five thousand, six hundred sixty-four 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 138072108231909 cubic inches would be around 4307.1 feet tall.

Recreational maths with 138072108231909

• 138072108231909 backwards is 909132801270831
• The number of decimal digits it has is: 15
• The sum of 138072108231909's digits is 54
• More coming soon!