139525540

Names of 139525540

• Cardinal: 139525540 can be written as One hundred thirty-nine million, five hundred twenty-five thousand, five hundred forty.

Scientific notation

• Scientific notation: 1.3952554 × 10⁸

Factors of 139525540

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 68

Divisors of 139525540

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 11 14 20 22 28 35 43 44 49 55 70 77 86 98 110 140 154 172 196 215 220 245 301 308 343 385 430 473 490 539 602 686 770 860 946 980 1078 1204 1372 1505 1540 1715 1849 1892 2107 2156 2365 2695 3010 3311 3430 3698 3773 4214 4730 5390 6020 6622 6860 7396 7546 8428 9245 9460 10535 10780 12943 13244 14749 15092 16555 18490 18865 20339 21070 23177 25886 29498 33110 36980 37730 40678 42140 46354 51772 58996 64715 66220 73745 75460 81356 90601 92708 101695 115885 129430 142373 147490 162239 181202 203390 231770 258860 284746 294980 324478 362404 406780 453005 463540 569492 634207 648956 711865 811195 906010 996611 1268414 1423730 1622390 1812020 1993222 2536828 2847460 3171035 3244780 3986444 4983055 6342070 6976277 9966110 12684140 13952554 19932220 27905108 34881385 69762770 139525540
• Sum of all divisors σ(n): 381628800
• Sum of proper divisors (its aliquot sum) s(n): 242103260
• 139525540 is an abundant number, because the sum of its proper divisors (242103260) is greater than itself. Its abundance is 102577720

Bases of 139525540

• Binary: 1000010100001111110110100100₂
• Hexadecimal: 0x850FDA4
• Base-36: 2B2ILG

Squares and roots of 139525540

• 139525540 squared (139525540²) is 19467376312291600
• 139525540 cubed (139525540³) is 2716196192355694127464000
• The square root of 139525540 is 11812.0929559499
• The cube root of 139525540 is 518.6621675459

Scales and comparisons

• 139,525,540 seconds is equal to 4 years, 22 weeks, 4 days, 21 hours, 5 minutes, 40 seconds.
• To count from 1 to 139,525,540 would take you about six 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 139525540 cubic inches would be around 43.2 feet tall.

Recreational maths with 139525540

• 139525540 backwards is 045525931
• The number of decimal digits it has is: 9
• The sum of 139525540's digits is 34
• More coming soon!