138635608839

Names of 138635608839

• Cardinal: 138635608839 can be written as One hundred thirty-eight billion, six hundred thirty-five million, six hundred eight thousand, eight hundred thirty-nine.

Scientific notation

• Scientific notation: 1.38635608839 × 10¹¹

Factors of 138635608839

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3361

Divisors of 138635608839

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 13 21 37 39 61 71 91 111 183 213 259 273 427 481 497 777 793 923 1281 1443 1491 2257 2379 2627 2769 3169 3367 4331 5551 6461 6771 7881 9507 10101 12993 15799 16653 18389 19383 22183 29341 30317 34151 41197 47397 55167 56303 66549 88023 90951 102453 117253 123591 160247 168909 193309 205387 224999 239057 288379 351759 394121 480741 579927 616161 674997 717171 820771 865137 1121729 1182363 1353163 1524289 1574993 2083211 2462313 2513017 2924987 3365187 4059489 4572867 4724979 6249633 7152433 7539051 8324963 8774961 10670023 13724939 14582477 17591119 20474909 21457299 24974889 32010069 41174817 43747431 50067031 52773357 58274741 61424727 92981629 96074573 108224519 150201093 174824223 178424207 278944887 288223719 324673557 507822743 535272621 650871403 757571633 1248969449 1523468229 1952614209 2272714899 3554759201 3746908347 6601695659 10664277603 19805086977 46211869613 138635608839
• Sum of all divisors σ(n): 240904581120
• Sum of proper divisors (its aliquot sum) s(n): 102268972281
• 138635608839 is a deficient number, because the sum of its proper divisors (102268972281) is less than itself. Its deficiency is 36366636558

Bases of 138635608839

• Binary: 10000001000111010100111000001100000111₂
• Hexadecimal: 0x2047538307
• Base-36: 1ROS28EF

Squares and roots of 138635608839

• 138635608839 squared (138635608839²) is 19219832038160214927921
• 138635608839 cubed (138635608839³) is 2664553116393659677959424335493719
• The square root of 138635608839 is 372338.0303420535
• The cube root of 138635608839 is 5175.5709277175

Scales and comparisons

• 138,635,608,839 seconds is equal to 4,408 years, 9 weeks, 3 days, 19 hours, 20 minutes, 39 seconds.
• To count from 1 to 138,635,608,839 would take you about eight thousand, eight hundred sixteen 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 138635608839 cubic inches would be around 431.3 feet tall.

Recreational maths with 138635608839

• 138635608839 backwards is 938806536831
• The number of decimal digits it has is: 12
• The sum of 138635608839's digits is 60
• More coming soon!