138949681850

Names of 138949681850

• Cardinal: 138949681850 can be written as One hundred thirty-eight billion, nine hundred forty-nine million, six hundred eighty-one thousand, eight hundred fifty.

Scientific notation

• Scientific notation: 1.3894968185 × 10¹¹

Factors of 138949681850

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 485999

Divisors of 138949681850

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 5 7 10 14 19 25 35 38 43 50 70 86 95 133 175 190 215 266 301 350 430 475 602 665 817 950 1075 1330 1505 1634 2150 3010 3325 4085 5719 6650 7525 8170 11438 15050 20425 28595 40850 57190 142975 285950 485923 971846 2429615 3401461 4859230 6802922 9232537 12148075 17007305 18465074 20894689 24296150 34014610 41789378 46162685 64627759 85036525 92325370 104473445 129255518 146262823 170073050 208946890 230813425 292525646 323138795 396999091 461626850 522367225 646277590 731314115 793998182 1044734450 1462628230 1615693975 1984995455 2778993637 3231387950 3656570575 3969990910 5557987274 7313141150 9924977275 13894968185 19849954550 27789936370 69474840925 138949681850
• Sum of all divisors σ(n): 318144161280
• Sum of proper divisors (its aliquot sum) s(n): 179194479430
• 138949681850 is an abundant number, because the sum of its proper divisors (179194479430) is greater than itself. Its abundance is 40244797580

Bases of 138949681850

• Binary: 10000001011010000010111110001010111010₂
• Hexadecimal: 0x205A0BE2BA
• Base-36: 1RTZ1WOQ

Squares and roots of 138949681850

• 138949681850 squared (138949681850²) is 19307014086216219422500
• 138949681850 cubed (138949681850³) is 2682703464753212159066165731625000
• The square root of 138949681850 is 372759.5496429301
• The cube root of 138949681850 is 5179.4763244997

Scales and comparisons

• 138,949,681,850 seconds is equal to 4,418 years, 8 weeks, 5 days, 21 hours, 50 minutes, 50 seconds.
• To count from 1 to 138,949,681,850 would take you about eight thousand, eight hundred thirty-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 138949681850 cubic inches would be around 431.6 feet tall.

Recreational maths with 138949681850

• 138949681850 backwards is 058186949831
• The number of decimal digits it has is: 12
• The sum of 138949681850's digits is 62
• More coming soon!