138742439017

Names of 138742439017

• Cardinal: 138742439017 can be written as One hundred thirty-eight billion, seven hundred forty-two million, four hundred thirty-nine thousand and seventeen.

Scientific notation

• Scientific notation: 1.38742439017 × 10¹¹

Factors of 138742439017

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1190

Divisors of 138742439017

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 13 59 91 109 383 413 619 763 767 1417 2681 4333 4979 5369 6431 8047 9919 22597 34853 36521 41747 45017 56329 67471 83603 158179 237077 255647 292229 293761 472297 474773 542711 585221 877123 1659539 2056327 2463073 3082001 3323411 3798977 3980789 6139861 13987543 17241511 21574007 25841393 27865523 32019949 51750257 97912801 180889751 181838059 224139643 335938109 362251799 1272866413 1524642187 2351566763 10672495309 19820348431 138742439017
• Sum of all divisors σ(n): 175988736000
• Sum of proper divisors (its aliquot sum) s(n): 37246296983
• 138742439017 is a deficient number, because the sum of its proper divisors (37246296983) is less than itself. Its deficiency is 101496142034

Bases of 138742439017

• Binary: 10000001001101101100011001110001101001₂
• Hexadecimal: 0x204DB19C69
• Base-36: 1RQJNZ3D

Squares and roots of 138742439017

• 138742439017 squared (138742439017²) is 19249464384385963926289
• 138742439017 cubed (138742439017³) is 2670717638460583047033913465617913
• The square root of 138742439017 is 372481.4613064655
• The cube root of 138742439017 is 5176.8999879031

Scales and comparisons

• 138,742,439,017 seconds is equal to 4,411 years, 30 weeks, 1 day, 6 hours, 23 minutes, 37 seconds.
• To count from 1 to 138,742,439,017 would take you about eight thousand, eight hundred twenty-three 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 138742439017 cubic inches would be around 431.4 feet tall.

Recreational maths with 138742439017

• 138742439017 backwards is 710934247831
• The number of decimal digits it has is: 12
• The sum of 138742439017's digits is 49
• More coming soon!