138605121135

Names of 138605121135

• Cardinal: 138605121135 can be written as One hundred thirty-eight billion, six hundred five million, one hundred twenty-one thousand, one hundred thirty-five.

Scientific notation

• Scientific notation: 1.38605121135 × 10¹¹

Factors of 138605121135

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 545

Divisors of 138605121135

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 9 13 15 27 37 39 45 65 81 111 117 135 185 195 243 333 351 405 481 487 555 585 999 1053 1215 1443 1461 1665 1755 2405 2435 2997 3159 4329 4383 4995 5265 6331 7215 7305 8991 12987 13149 14985 15795 18019 18993 21645 21915 31655 38961 39447 44955 54057 56979 64935 65745 90095 94965 116883 118341 162171 170937 194805 197235 234247 237169 270285 284895 486513 512811 584415 591705 702741 711507 810855 854685 1171235 1185845 1459539 1538433 2108223 2134521 2432565 2564055 3083197 3513705 3557535 4378617 6324669 6403563 7297695 7692165 8775253 9249591 10541115 10672605 15415985 18974007 19210689 21893085 26325759 27748773 31623345 32017815 43876265 46247955 56922021 57632067 78977277 83246319 94870035 96053445 114078289 131628795 138743865 236931831 249738957 284610105 288160335 342234867 394886385 416231595 570391445 710795493 749216871 1026704601 1184659155 1248694785 1711174335 2132386479 3080113803 3553977465 3746084355 5133523005 9240341409 10661932395 15400569015 27721024227 46201707045 138605121135
• Sum of all divisors σ(n): 276130816416
• Sum of proper divisors (its aliquot sum) s(n): 137525695281
• 138605121135 is a deficient number, because the sum of its proper divisors (137525695281) is less than itself. Its deficiency is 1079425854

Bases of 138605121135

• Binary: 10000001000101100000100100111001101111₂
• Hexadecimal: 0x2045824E6F
• Base-36: 1RO9WRXR

Squares and roots of 138605121135

• 138605121135 squared (138605121135²) is 19211379604848023688225
• 138605121135 cubed (138605121135³) is 2662795597300428756571775598135375
• The square root of 138605121135 is 372297.0871965023
• The cube root of 138605121135 is 5175.1915089809

Scales and comparisons

• 138,605,121,135 seconds is equal to 4,407 years, 11 weeks, 22 hours, 32 minutes, 15 seconds.
• To count from 1 to 138,605,121,135 would take you about eight thousand, eight hundred fourteen 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 138605121135 cubic inches would be around 431.3 feet tall.

Recreational maths with 138605121135

• 138605121135 backwards is 531121506831
• The number of decimal digits it has is: 12
• The sum of 138605121135's digits is 36
• More coming soon!