664632890

Names of 664632890

• Cardinal: 664632890 can be written as Six hundred sixty-four million, six hundred thirty-two thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 6.6463289 × 10⁸

Factors of 664632890

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 66463296

Divisors of 664632890

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 66463289 132926578 332316445 664632890
• Sum of all divisors σ(n): 1196339220
• Sum of proper divisors (its aliquot sum) s(n): 531706330
• 664632890 is a deficient number, because the sum of its proper divisors (531706330) is less than itself. Its deficiency is 132926560

Bases of 664632890

• Binary: 100111100111010111111000111010₂
• Hexadecimal: 0x279D7E3A
• Base-36: AZPE0Q

Squares and roots of 664632890

• 664632890 squared (664632890²) is 441736878469752100
• 664632890 cubed (664632890³) is 293592858156930115806569000
• The square root of 664632890 is 25780.4749762295
• The cube root of 664632890 is 872.6912260831

Scales and comparisons

• 664,632,890 seconds is equal to 21 years, 6 weeks, 6 days, 12 hours, 14 minutes, 50 seconds.
• To count from 1 to 664,632,890 would take you about thirty-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 664632890 cubic inches would be around 72.7 feet tall.

Recreational maths with 664632890

• 664632890 backwards is 098236466
• The number of decimal digits it has is: 9
• The sum of 664632890's digits is 44
• More coming soon!