40156742

Names of 40156742

• Cardinal: 40156742 can be written as Forty million, one hundred fifty-six thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 4.0156742 × 10⁷

Factors of 40156742

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 20078373

Divisors of 40156742

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 20078371 40156742
• Sum of all divisors σ(n): 60235116
• Sum of proper divisors (its aliquot sum) s(n): 20078374
• 40156742 is a deficient number, because the sum of its proper divisors (20078374) is less than itself. Its deficiency is 20078368

Bases of 40156742

• Binary: 10011001001011111001000110₂
• Hexadecimal: 0x264BE46
• Base-36: NWP52

Squares and roots of 40156742

• 40156742 squared (40156742²) is 1612563928054564
• 40156742 cubed (40156742³) is 64755313617393688470488
• The square root of 40156742 is 6336.9347479675
• The cube root of 40156742 is 342.4413155355

Scales and comparisons

• 40,156,742 seconds is equal to 1 year, 14 weeks, 2 days, 18 hours, 39 minutes, 2 seconds.
• To count from 1 to 40,156,742 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 40156742 cubic inches would be around 28.5 feet tall.

Recreational maths with 40156742

• 40156742 backwards is 24765104
• The number of decimal digits it has is: 8
• The sum of 40156742's digits is 29
• More coming soon!