138786423170

Names of 138786423170

• Cardinal: 138786423170 can be written as One hundred thirty-eight billion, seven hundred eighty-six million, four hundred twenty-three thousand, one hundred seventy.

Scientific notation

• Scientific notation: 1.3878642317 × 10¹¹

Factors of 138786423170

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 65927

Divisors of 138786423170

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 29 37 58 74 145 185 197 290 370 394 985 1073 1970 2146 5365 5713 7289 10730 11426 14578 28565 36445 57130 65657 72890 131314 211381 328285 422762 656570 1056905 1904053 2113810 2429309 3808106 4858618 9520265 12146545 12934429 19040530 24293090 25868858 64672145 70449961 129344290 140899922 352249805 375098441 478573873 704499610 750196882 957147746 1875492205 2392869365 3750984410 4785738730 13878642317 27757284634 69393211585 138786423170
• Sum of all divisors σ(n): 266765827680
• Sum of proper divisors (its aliquot sum) s(n): 127979404510
• 138786423170 is a deficient number, because the sum of its proper divisors (127979404510) is less than itself. Its deficiency is 10807018660

Bases of 138786423170

• Binary: 10000001010000010100001100000110000010₂
• Hexadecimal: 0x205050C182
• Base-36: 1RR9UPHE

Squares and roots of 138786423170

• 138786423170 squared (138786423170²) is 19261671256322312848900
• 138786423170 cubed (138786423170³) is 2673258457941374048960563669013000
• The square root of 138786423170 is 372540.4986977925
• The cube root of 138786423170 is 5177.4469906923

Scales and comparisons

• 138,786,423,170 seconds is equal to 4,412 years, 50 weeks, 6 days, 8 hours, 12 minutes, 50 seconds.
• To count from 1 to 138,786,423,170 would take you about eight thousand, eight hundred twenty-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 138786423170 cubic inches would be around 431.5 feet tall.

Recreational maths with 138786423170

• 138786423170 backwards is 071324687831
• The number of decimal digits it has is: 12
• The sum of 138786423170's digits is 50
• More coming soon!