1642005838

Names of 1642005838

• Cardinal: 1642005838 can be written as One billion, six hundred forty-two million, five thousand, eight hundred thirty-eight.

Scientific notation

• Scientific notation: 1.642005838 × 10⁹

Factors of 1642005838

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 22467

Divisors of 1642005838

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 11 22 4057 8114 18397 36794 44627 89254 202367 404734 74636629 149273258 821002919 1642005838
• Sum of all divisors σ(n): 2687727024
• Sum of proper divisors (its aliquot sum) s(n): 1045721186
• 1642005838 is a deficient number, because the sum of its proper divisors (1045721186) is less than itself. Its deficiency is 596284652

Bases of 1642005838

• Binary: 1100001110111110000010101001110₂
• Hexadecimal: 0x61DF054E
• Base-36: R5LVTA

Squares and roots of 1642005838

• 1642005838 squared (1642005838²) is 2696183172026082244
• 1642005838 cubed (1642005838³) is 4427148508784185332916140472
• The square root of 1642005838 is 40521.6712143021
• The cube root of 1642005838 is 1179.7542909829

Scales and comparisons

• 1,642,005,838 seconds is equal to 52 years, 10 weeks, 6 days, 16 hours, 43 minutes, 58 seconds.
• To count from 1 to 1,642,005,838 would take you about one hundred 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 1642005838 cubic inches would be around 98.3 feet tall.

Recreational maths with 1642005838

• 1642005838 backwards is 8385002461
• The number of decimal digits it has is: 10
• The sum of 1642005838's digits is 37
• More coming soon!