138973447690

Names of 138973447690

• Cardinal: 138973447690 can be written as One hundred thirty-eight billion, nine hundred seventy-three million, four hundred forty-seven thousand, six hundred ninety.

Scientific notation

• Scientific notation: 1.3897344769 × 10¹¹

Factors of 138973447690

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1556

Divisors of 138973447690

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 5 7 10 11 14 22 35 49 55 70 77 98 110 121 154 242 245 385 490 539 605 770 847 1078 1210 1531 1694 2695 3062 4235 5390 5929 7655 8470 10717 11858 15310 16841 21434 29645 33682 53585 59290 75019 84205 107170 117887 150038 168410 185251 235774 370502 375095 589435 750190 825209 926255 1178870 1296757 1650418 1852510 2343961 2593514 4126045 4687922 6483785 8252090 9077299 11719805 12967570 16407727 18154598 23439610 25783571 32815454 45386495 51567142 82038635 90772990 114854089 128917855 164077270 180484997 229708178 257835710 283619281 360969994 567238562 574270445 902424985 1148540890 1263394979 1418096405 1804849970 1985334967 2526789958 2836192810 3970669934 6316974895 9926674835 12633949790 13897344769 19853349670 27794689538 69486723845 138973447690
• Sum of all divisors σ(n): 320061283794
• Sum of proper divisors (its aliquot sum) s(n): 181087836104
• 138973447690 is an abundant number, because the sum of its proper divisors (181087836104) is greater than itself. Its abundance is 42114388414

Bases of 138973447690

• Binary: 10000001011011011101101000011000001010₂
• Hexadecimal: 0x205B76860A
• Base-36: 1RUD7AIY

Squares and roots of 138973447690

• 138973447690 squared (138973447690²) is 19313619162845166336100
• 138973447690 cubed (138973447690³) is 2684080242432244315379342308609000
• The square root of 138973447690 is 372791.4265242697
• The cube root of 138973447690 is 5179.7716054643

Scales and comparisons

• 138,973,447,690 seconds is equal to 4,418 years, 48 weeks, 23 hours, 28 minutes, 10 seconds.
• To count from 1 to 138,973,447,690 would take you about eight thousand, eight hundred thirty-seven 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 138973447690 cubic inches would be around 431.6 feet tall.

Recreational maths with 138973447690

• 138973447690 backwards is 096744379831
• The number of decimal digits it has is: 12
• The sum of 138973447690's digits is 61
• More coming soon!