1990528642

Names of 1990528642

• Cardinal: 1990528642 can be written as One billion, nine hundred ninety million, five hundred twenty-eight thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 1.990528642 × 10⁹

Factors of 1990528642

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 87680

Divisors of 1990528642

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 13399 26798 74279 148558 995264321 1990528642
• Sum of all divisors σ(n): 2986056000
• Sum of proper divisors (its aliquot sum) s(n): 995527358
• 1990528642 is a deficient number, because the sum of its proper divisors (995527358) is less than itself. Its deficiency is 995001284

Bases of 1990528642

• Binary: 1110110101001010000111010000010₂
• Hexadecimal: 0x76A50E82
• Base-36: WX3XQA

Squares and roots of 1990528642

• 1990528642 squared (1990528642²) is 3962204274622364164
• 1990528642 cubed (1990528642³) is 7886881094090649602196385288
• The square root of 1990528642 is 44615.3408818089
• The cube root of 1990528642 is 1257.9290415211

Scales and comparisons

• 1,990,528,642 seconds is equal to 63 years, 15 weeks, 1 day, 12 hours, 37 minutes, 22 seconds.
• To count from 1 to 1,990,528,642 would take you about one hundred twenty-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 1990528642 cubic inches would be around 104.8 feet tall.

Recreational maths with 1990528642

• 1990528642 backwards is 2468250991
• The number of decimal digits it has is: 10
• The sum of 1990528642's digits is 46
• More coming soon!