400020591766987729

Names of 400020591766987729

• Cardinal: 400020591766987729 can be written as Four hundred quadrillion, twenty trillion, five hundred ninety-one billion, seven hundred sixty-six million, nine hundred eighty-seven thousand, seven hundred twenty-nine.

Scientific notation

• Scientific notation: 4.00020591766987729 × 10¹⁷

Factors of 400020591766987729

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 76557272

Divisors of 400020591766987729

• Number of divisors d(n): 16
• Complete list of divisors:
  1 47 1109 52123 100379 4717813 76455737 111320311 3593419639 5232054617 84789412333 3985102379651 7674550424323 360703869943181 8511076420574207 400020591766987729
• Sum of all divisors σ(n): 408904125517843200
• Sum of proper divisors (its aliquot sum) s(n): 8883533750855471
• 400020591766987729 is a deficient number, because the sum of its proper divisors (8883533750855471) is less than itself. Its deficiency is 391137058016132258

Bases of 400020591766987729

• Binary: 10110001101001010001001101111011011000111001110001111010001₂
• Hexadecimal: 0x58D289BDB1CE3D1
• Base-36: 31ERGQXCG9G1

Squares and roots of 400020591766987729

• 400020591766987729 squared (400020591766987729²) is 160016473837611050876925854436577441
• 400020591766987729 cubed (400020591766987729³) is 64009884556987882471216163252296499561782737005221489
• The square root of 400020591766987729 is 632471811.0453522251
• The cube root of 400020591766987729 is 736818.9429641569

Scales and comparisons

• 400,020,591,766,987,729 seconds is equal to 12,719,417,473 years, 13 weeks, 3 days, 1 hour, 28 minutes, 49 seconds.
• To count from 1 to 400,020,591,766,987,729 would take you about thirty-eight billion, one hundred fifty-eight million, two hundred fifty-two thousand, four hundred nineteen 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 400020591766987729 cubic inches would be around 61401.6 feet tall.

Recreational maths with 400020591766987729

• 400020591766987729 backwards is 927789667195020004
• The number of decimal digits it has is: 18
• The sum of 400020591766987729's digits is 82
• More coming soon!