1328391638

Names of 1328391638

• Cardinal: 1328391638 can be written as One billion, three hundred twenty-eight million, three hundred ninety-one thousand, six hundred thirty-eight.

Scientific notation

• Scientific notation: 1.328391638 × 10⁹

Factors of 1328391638

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 94885126

Divisors of 1328391638

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 7 14 94885117 189770234 664195819 1328391638
• Sum of all divisors σ(n): 2277242832
• Sum of proper divisors (its aliquot sum) s(n): 948851194
• 1328391638 is a deficient number, because the sum of its proper divisors (948851194) is less than itself. Its deficiency is 379540444

Bases of 1328391638

• Binary: 1001111001011011010010111010110₂
• Hexadecimal: 0x4F2DA5D6
• Base-36: LYW1JQ

Squares and roots of 1328391638

• 1328391638 squared (1328391638²) is 1764624343908323044
• 1328391638 cubed (1328391638³) is 2344112222659052570252306072
• The square root of 1328391638 is 36447.1074023715
• The cube root of 1328391638 is 1099.2809730779

Scales and comparisons

• 1,328,391,638 seconds is equal to 42 years, 12 weeks, 2 days, 21 hours, 40 minutes, 38 seconds.
• To count from 1 to 1,328,391,638 would take you about eighty-four 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 1328391638 cubic inches would be around 91.6 feet tall.

Recreational maths with 1328391638

• 1328391638 backwards is 8361938231
• The number of decimal digits it has is: 10
• The sum of 1328391638's digits is 44
• More coming soon!