40807900

Names of 40807900

• Cardinal: 40807900 can be written as Forty million, eight hundred seven thousand, nine hundred.

Scientific notation

• Scientific notation: 4.08079 × 10⁷

Factors of 40807900

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 712

Divisors of 40807900

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 7 10 14 20 25 28 35 50 70 97 100 140 175 194 350 388 485 601 679 700 970 1202 1358 1940 2404 2425 2716 3005 3395 4207 4850 6010 6790 8414 9700 12020 13580 15025 16828 16975 21035 30050 33950 42070 58297 60100 67900 84140 105175 116594 210350 233188 291485 408079 420700 582970 816158 1165940 1457425 1632316 2040395 2914850 4080790 5829700 8161580 10201975 20403950 40807900
• Sum of all divisors σ(n): 102417056
• Sum of proper divisors (its aliquot sum) s(n): 61609156
• 40807900 is an abundant number, because the sum of its proper divisors (61609156) is greater than itself. Its abundance is 20801256

Bases of 40807900

• Binary: 10011011101010110111011100₂
• Hexadecimal: 0x26EADDC
• Base-36: OANKS

Squares and roots of 40807900

• 40807900 squared (40807900²) is 1665284702410000
• 40807900 cubed (40807900³) is 67956771607477039000000
• The square root of 40807900 is 6388.1061356243
• The cube root of 40807900 is 344.2823421147

Scales and comparisons

• 40,807,900 seconds is equal to 1 year, 15 weeks, 3 days, 7 hours, 31 minutes, 40 seconds.
• To count from 1 to 40,807,900 would take you about forty-nine 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 40807900 cubic inches would be around 28.7 feet tall.

Recreational maths with 40807900

• 40807900 backwards is 00970804
• 40807900 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40807900's digits is 28
• More coming soon!