138988395810

Names of 138988395810

• Cardinal: 138988395810 can be written as One hundred thirty-eight billion, nine hundred eighty-eight million, three hundred ninety-five thousand, eight hundred ten.

Scientific notation

• Scientific notation: 1.3898839581 × 10¹¹

Factors of 138988395810

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 102609

Divisors of 138988395810

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 30 33 37 45 55 66 74 90 99 110 111 165 185 198 222 330 333 370 407 495 555 666 814 990 1110 1221 1369 1665 2035 2442 2738 3330 3663 4070 4107 6105 6845 7326 8214 12210 12321 13690 15059 18315 20535 24642 30118 36630 41070 45177 61605 75295 90354 102551 123210 135531 150590 205102 225885 271062 307653 451770 512755 615306 677655 922959 1025510 1128061 1355310 1538265 1845918 2256122 3076530 3384183 3794387 4614795 5640305 6768366 7588774 9229590 10152549 11280610 11383161 16920915 18971935 20305098 22766322 33841830 34149483 37943870 41738257 50762745 56915805 68298966 83476514 101525490 113831610 125214771 140392319 170747415 208691285 250429542 280784638 341494830 375644313 417382570 421176957 626073855 701961595 751288626 842353914 1252147710 1263530871 1403923190 1544315509 1878221565 2105884785 2527061742 3088631018 3756443130 4211769570 4632946527 6317654355 7721577545 9265893054 12635308710 13898839581 15443155090 23164732635 27797679162 46329465270 69494197905 138988395810
• Sum of all divisors σ(n): 405168184512
• Sum of proper divisors (its aliquot sum) s(n): 266179788702
• 138988395810 is an abundant number, because the sum of its proper divisors (266179788702) is greater than itself. Its abundance is 127191392892

Bases of 138988395810

• Binary: 10000001011100010110101001110100100010₂
• Hexadecimal: 0x205C5A9D22
• Base-36: 1RUM3OKI

Squares and roots of 138988395810

• 138988395810 squared (138988395810²) is 19317774169837225556100
• 138988395810 cubed (138988395810³) is 2684946442485530468863474159941000
• The square root of 138988395810 is 372811.4748904599
• The cube root of 138988395810 is 5179.9573125733

Scales and comparisons

• 138,988,395,810 seconds is equal to 4,419 years, 20 weeks, 5 days, 23 hours, 43 minutes, 30 seconds.
• To count from 1 to 138,988,395,810 would take you about eight thousand, eight hundred thirty-eight 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 138988395810 cubic inches would be around 431.7 feet tall.

Recreational maths with 138988395810

• 138988395810 backwards is 018593889831
• The number of decimal digits it has is: 12
• The sum of 138988395810's digits is 63
• More coming soon!