6990405

Names of 6990405

• Cardinal: 6990405 can be written as Six million, nine hundred ninety thousand, four hundred five.

Scientific notation

• Scientific notation: 6.990405 × 10⁶

Factors of 6990405

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 466035

Divisors of 6990405

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 466027 1398081 2330135 6990405
• Sum of all divisors σ(n): 11184672
• Sum of proper divisors (its aliquot sum) s(n): 4194267
• 6990405 is a deficient number, because the sum of its proper divisors (4194267) is less than itself. Its deficiency is 2796138

Bases of 6990405

• Binary: 11010101010101001000101₂
• Hexadecimal: 0x6AAA45
• Base-36: 45TTX

Squares and roots of 6990405

• 6990405 squared (6990405²) is 48865762064025
• 6990405 cubed (6990405³) is 341591467461170680125
• The square root of 6990405 is 2643.9374047053
• The cube root of 6990405 is 191.2056755755

Scales and comparisons

• 6,990,405 seconds is equal to 11 weeks, 3 days, 21 hours, 46 minutes, 45 seconds.
• To count from 1 to 6,990,405 would take you about seventeen weeks!

  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 6990405 cubic inches would be around 15.9 feet tall.

Recreational maths with 6990405

• 6990405 backwards is 5040996
• The number of decimal digits it has is: 7
• The sum of 6990405's digits is 33
• More coming soon!