40138854

Names of 40138854

• Cardinal: 40138854 can be written as Forty million, one hundred thirty-eight thousand, eight hundred fifty-four.

Scientific notation

• Scientific notation: 4.0138854 × 10⁷

Factors of 40138854

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 15740

Divisors of 40138854

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 7 14 21 42 61 122 183 366 427 854 1281 2562 15667 31334 47001 94002 109669 219338 329007 658014 955687 1911374 2867061 5734122 6689809 13379618 20069427 40138854
• Sum of all divisors σ(n): 93255936
• Sum of proper divisors (its aliquot sum) s(n): 53117082
• 40138854 is an abundant number, because the sum of its proper divisors (53117082) is greater than itself. Its abundance is 12978228

Bases of 40138854

• Binary: 10011001000111100001100110₂
• Hexadecimal: 0x2647866
• Base-36: NWBC6

Squares and roots of 40138854

• 40138854 squared (40138854²) is 1611127600433316
• 40138854 cubed (40138854³) is 64668815529163207659864
• The square root of 40138854 is 6335.5231828161
• The cube root of 40138854 is 342.3904606461

Scales and comparisons

• 40,138,854 seconds is equal to 1 year, 14 weeks, 2 days, 13 hours, 40 minutes, 54 seconds.
• To count from 1 to 40,138,854 would take you about forty-seven 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 40138854 cubic inches would be around 28.5 feet tall.

Recreational maths with 40138854

• 40138854 backwards is 45883104
• The number of decimal digits it has is: 8
• The sum of 40138854's digits is 33
• More coming soon!