40638997

Names of 40638997

• Cardinal: 40638997 can be written as Forty million, six hundred thirty-eight thousand, nine hundred ninety-seven.

Scientific notation

• Scientific notation: 4.0638997 × 10⁷

Factors of 40638997

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 35787

Divisors of 40638997

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 163 1141 35617 249319 5805571 40638997
• Sum of all divisors σ(n): 46730816
• Sum of proper divisors (its aliquot sum) s(n): 6091819
• 40638997 is a deficient number, because the sum of its proper divisors (6091819) is less than itself. Its deficiency is 34547178

Bases of 40638997

• Binary: 10011011000001101000010101₂
• Hexadecimal: 0x26C1A15
• Base-36: O7191

Squares and roots of 40638997

• 40638997 squared (40638997²) is 1651528077166009
• 40638997 cubed (40638997³) is 67116444573365208252973
• The square root of 40638997 is 6374.8723124467
• The cube root of 40638997 is 343.8066929305

Scales and comparisons

• 40,638,997 seconds is equal to 1 year, 15 weeks, 1 day, 8 hours, 36 minutes, 37 seconds.
• To count from 1 to 40,638,997 would take you about forty-eight 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 40638997 cubic inches would be around 28.7 feet tall.

Recreational maths with 40638997

• 40638997 backwards is 79983604
• The number of decimal digits it has is: 8
• The sum of 40638997's digits is 46
• More coming soon!