3987395894495

Names of 3987395894495

• Cardinal: 3987395894495 can be written as Three trillion, nine hundred eighty-seven billion, three hundred ninety-five million, eight hundred ninety-four thousand, four hundred ninety-five.

Scientific notation

• Scientific notation: 3.987395894495 × 10¹²

Factors of 3987395894495

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6420

Divisors of 3987395894495

• Number of divisors d(n): 64
• Complete list of divisors:
  1 5 13 29 65 145 377 461 919 1885 2305 4595 4993 5993 11947 13369 24965 26651 29965 59735 64909 66845 133255 144797 173797 324545 346463 423659 723985 868985 1732315 1882361 2118295 2301773 4588567 5507567 9411805 11508865 12286111 22942835 27537835 29923049 59651371 61430555 66751417 133068443 149615245 159719443 298256855 333757085 665342215 798597215 867768421 1729889759 2115329387 4338842105 8649448795 10576646935 27499282031 61344552223 137496410155 306722761115 797479178899 3987395894495
• Sum of all divisors σ(n): 5349077395200
• Sum of proper divisors (its aliquot sum) s(n): 1361681500705
• 3987395894495 is a deficient number, because the sum of its proper divisors (1361681500705) is less than itself. Its deficiency is 2625714393790

Bases of 3987395894495

• Binary: 111010000001100011010100001101110011011111₂
• Hexadecimal: 0x3A06350DCDF
• Base-36: 1EVS8KB1B

Squares and roots of 3987395894495

• 3987395894495 squared (3987395894495²) is 15899326019435581171305025
• 3987395894495 cubed (3987395894495³) is 63396907295134966939585979986363337375
• The square root of 3987395894495 is 1996846.4874634205
• The cube root of 3987395894495 is 15857.3198345091

Scales and comparisons

• 3,987,395,894,495 seconds is equal to 126,786 years, 44 weeks, 3 days, 10 hours, 41 minutes, 35 seconds.
• To count from 1 to 3,987,395,894,495 would take you about three hundred sixteen thousand, nine hundred sixty-seven 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 3987395894495 cubic inches would be around 1321.4 feet tall.

Recreational maths with 3987395894495

• 3987395894495 backwards is 5944985937893
• The number of decimal digits it has is: 13
• The sum of 3987395894495's digits is 83
• More coming soon!