40028

Names of 40028

• Cardinal: 40028 can be written as Forty thousand and twenty-eight.

Scientific notation

• Scientific notation: 4.0028 × 10⁴

Factors of 40028

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 10009

Divisors of 40028

• Number of divisors d(n): 6
• Complete list of divisors:
  1 2 4 10007 20014 40028
• Sum of all divisors σ(n): 70056
• Sum of proper divisors (its aliquot sum) s(n): 30028
• 40028 is a deficient number, because the sum of its proper divisors (30028) is less than itself. Its deficiency is 10000

Bases of 40028

• Binary: 1001110001011100₂
• Hexadecimal: 0x9C5C
• Base-36: UVW

Squares and roots of 40028

• 40028 squared (40028²) is 1602240784
• 40028 cubed (40028³) is 64134494101952
• The square root of 40028 is 200.0699877543
• The cube root of 40028 is 34.2074969601

Scales and comparisons

• 40,028 seconds is equal to 11 hours, 7 minutes, 8 seconds.
• To count from 1 to 40,028 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 40028 cubic inches would be around 2.9 feet tall.

Recreational maths with 40028

• 40028 backwards is 82004
• The number of decimal digits it has is: 5
• The sum of 40028's digits is 14
• More coming soon!