138155958885

Names of 138155958885

• Cardinal: 138155958885 can be written as One hundred thirty-eight billion, one hundred fifty-five million, nine hundred fifty-eight thousand, eight hundred eighty-five.

Scientific notation

• Scientific notation: 1.38155958885 × 10¹¹

Factors of 138155958885

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 99508

Divisors of 138155958885

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 5 7 15 21 31 35 49 61 93 105 147 155 183 217 245 305 427 465 651 735 915 1085 1281 1519 1891 2135 2989 3255 4557 5673 6405 7595 8967 9455 13237 14945 22785 28365 39711 44835 66185 92659 99401 198555 277977 298203 463295 497005 695807 1389885 1491015 2087421 3081431 3479035 4870649 6063461 9244293 10437105 14611947 15407155 18190383 21570017 24353245 30317305 42444227 46221465 64710051 73059735 90951915 107850085 127332681 150990119 187967291 212221135 297109589 323550255 452970357 563901873 636663405 754950595 891328767 939836455 1315771037 1485547945 2264851785 2819509365 3947313111 4456643835 6578855185 9210397259 19736565555 27631191777 46051986295 138155958885
• Sum of all divisors σ(n): 269788161024
• Sum of proper divisors (its aliquot sum) s(n): 131632202139
• 138155958885 is a deficient number, because the sum of its proper divisors (131632202139) is less than itself. Its deficiency is 6523756746

Bases of 138155958885

• Binary: 10000000101010101111001010001001100101₂
• Hexadecimal: 0x202ABCA265
• Base-36: 1RGUHO4L

Squares and roots of 138155958885

• 138155958885 squared (138155958885²) is 19087068975433810443225
• 138155958885 cubed (138155958885³) is 2636992316605192590633076726804125
• The square root of 138155958885 is 371693.3667487221
• The cube root of 138155958885 is 5169.5952364171

Scales and comparisons

• 138,155,958,885 seconds is equal to 4,392 years, 48 weeks, 3 days, 7 hours, 14 minutes, 45 seconds.
• To count from 1 to 138,155,958,885 would take you about eight thousand, seven hundred eighty-five 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 138155958885 cubic inches would be around 430.8 feet tall.

Recreational maths with 138155958885

• 138155958885 backwards is 588859551831
• The number of decimal digits it has is: 12
• The sum of 138155958885's digits is 66
• More coming soon!