40072

Names of 40072

• Cardinal: 40072 can be written as Forty thousand and seventy-two.

Scientific notation

• Scientific notation: 4.0072 × 10⁴

Factors of 40072

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 5011

Divisors of 40072

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 4 8 5009 10018 20036 40072
• Sum of all divisors σ(n): 75150
• Sum of proper divisors (its aliquot sum) s(n): 35078
• 40072 is a deficient number, because the sum of its proper divisors (35078) is less than itself. Its deficiency is 4994

Bases of 40072

• Binary: 1001110010001000₂
• Hexadecimal: 0x9C88
• Base-36: UX4

Squares and roots of 40072

• 40072 squared (40072²) is 1605765184
• 40072 cubed (40072³) is 64346222453248
• The square root of 40072 is 200.1799190729
• The cube root of 40072 is 34.2200263453

Scales and comparisons

• 40,072 seconds is equal to 11 hours, 7 minutes, 52 seconds.
• To count from 1 to 40,072 would take you about eleven hours.

  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 40072 cubic inches would be around 2.9 feet tall.

Recreational maths with 40072

• 40072 backwards is 27004
• The number of decimal digits it has is: 5
• The sum of 40072's digits is 13
• More coming soon!