1540165237113721

Names of 1540165237113721

• Cardinal: 1540165237113721 can be written as One quadrillion, five hundred forty trillion, one hundred sixty-five billion, two hundred thirty-seven million, one hundred thirteen thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 1.540165237113721 × 10¹⁵

Factors of 1540165237113721

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 140

Divisors of 1540165237113721

• Number of divisors d(n): 21
• Complete list of divisors:
  1 43 97 1849 4171 9409 179353 404587 912673 17397241 39244939 88529281 1687532377 3806759083 8587340257 163690640569 369255631051 832972004929 15877992135193 35817796211947 1540165237113721
• Sum of all divisors σ(n): 1593241172052771
• Sum of proper divisors (its aliquot sum) s(n): 53075934939050
• 1540165237113721 is a deficient number, because the sum of its proper divisors (53075934939050) is less than itself. Its deficiency is 1487089302174671

Bases of 1540165237113721

• Binary: 101011110001100010110101001110110101000001101111001₂
• Hexadecimal: 0x578C5A9DA8379
• Base-36: F5XY54AF7D

Squares and roots of 1540165237113721

• 1540165237113721 squared (1540165237113721²) is 2372108957613564430846686465841
• 1540165237113721 cubed (1540165237113721³) is 3653439755162477018818529131967012200898904361
• 1540165237113721 is a perfect square number. Its square root is 39244939
• The cube root of 1540165237113721 is 115484.1650952275
• Being both a perfect square and a perfect cube, 1540165237113721 is also a perfect sixth number.

Scales and comparisons

• 1,540,165,237,113,721 seconds is equal to 48,972,490 years, 25 weeks, 5 days, 16 hours, 2 minutes, 1 second.
• To count from 1 to 1,540,165,237,113,721 would take you about one hundred forty-six million, nine hundred seventeen thousand, four hundred seventy-one 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 1540165237113721 cubic inches would be around 9623.7 feet tall.

Recreational maths with 1540165237113721

• 1540165237113721 backwards is 1273117325610451
• The number of decimal digits it has is: 16
• The sum of 1540165237113721's digits is 49
• More coming soon!