40382390

Names of 40382390

• Cardinal: 40382390 can be written as Forty million, three hundred eighty-two thousand, three hundred ninety.

Scientific notation

• Scientific notation: 4.038239 × 10⁷

Factors of 40382390

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4038246

Divisors of 40382390

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 4038239 8076478 20191195 40382390
• Sum of all divisors σ(n): 72688320
• Sum of proper divisors (its aliquot sum) s(n): 32305930
• 40382390 is a deficient number, because the sum of its proper divisors (32305930) is less than itself. Its deficiency is 8076460

Bases of 40382390

• Binary: 10011010000010111110110110₂
• Hexadecimal: 0x2682FB6
• Base-36: O1J92

Squares and roots of 40382390

• 40382390 squared (40382390²) is 1630737422112100
• 40382390 cubed (40382390³) is 65853074567325445919000
• The square root of 40382390 is 6354.7139982851
• The cube root of 40382390 is 343.0815311063

Scales and comparisons

• 40,382,390 seconds is equal to 1 year, 14 weeks, 5 days, 9 hours, 19 minutes, 50 seconds.
• To count from 1 to 40,382,390 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 40382390 cubic inches would be around 28.6 feet tall.

Recreational maths with 40382390

• 40382390 backwards is 09328304
• The number of decimal digits it has is: 8
• The sum of 40382390's digits is 29
• More coming soon!