138986990625

Names of 138986990625

• Cardinal: 138986990625 can be written as One hundred thirty-eight billion, nine hundred eighty-six million, nine hundred ninety thousand, six hundred twenty-five.

Scientific notation

• Scientific notation: 1.38986990625 × 10¹¹

Factors of 138986990625

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 7833

Divisors of 138986990625

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 5 7 15 21 25 35 75 105 125 175 281 375 525 625 843 875 1405 1875 1967 2625 3125 4215 4375 5901 7025 7537 9375 9835 13125 21075 21875 22611 29505 35125 37685 49175 52759 65625 105375 113055 147525 158277 175625 188425 245875 263795 526875 565275 737625 791385 878125 942125 1229375 1318975 2117897 2634375 2826375 3688125 3956925 4710625 6146875 6353691 6594875 10589485 14131875 14825279 18440625 19784625 23553125 31768455 32974375 44475837 52947425 70659375 74126395 98923125 158842275 164871875 222379185 264737125 370631975 494615625 794211375 1111895925 1323685625 1853159875 3971056875 5559479625 6618428125 9265799375 19855284375 27797398125 46328996875 138986990625
• Sum of all divisors σ(n): 265697494272
• Sum of proper divisors (its aliquot sum) s(n): 126710503647
• 138986990625 is a deficient number, because the sum of its proper divisors (126710503647) is less than itself. Its deficiency is 12276486978

Bases of 138986990625

• Binary: 10000001011100010001010010110000100001₂
• Hexadecimal: 0x205C452C21
• Base-36: 1RUL9KBL

Squares and roots of 138986990625

• 138986990625 squared (138986990625²) is 19317383562993837890625
• 138986990625 cubed (138986990625³) is 2684865008169353643837066650390625
• The square root of 138986990625 is 372809.5903071701
• The cube root of 138986990625 is 5179.9398559053

Scales and comparisons

• 138,986,990,625 seconds is equal to 4,419 years, 18 weeks, 3 days, 17 hours, 23 minutes, 45 seconds.
• To count from 1 to 138,986,990,625 would take you about eight thousand, eight hundred thirty-eight 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 138986990625 cubic inches would be around 431.7 feet tall.

Recreational maths with 138986990625

• 138986990625 backwards is 526099689831
• The number of decimal digits it has is: 12
• The sum of 138986990625's digits is 66
• More coming soon!