28742810

Names of 28742810

• Cardinal: 28742810 can be written as Twenty-eight million, seven hundred forty-two thousand, eight hundred ten.

Scientific notation

• Scientific notation: 2.874281 × 10⁷

Factors of 28742810

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 2874288

Divisors of 28742810

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 2874281 5748562 14371405 28742810
• Sum of all divisors σ(n): 51737076
• Sum of proper divisors (its aliquot sum) s(n): 22994266
• 28742810 is a deficient number, because the sum of its proper divisors (22994266) is less than itself. Its deficiency is 5748544

Bases of 28742810

• Binary: 1101101101001010010011010₂
• Hexadecimal: 0x1B6949A
• Base-36: H423E

Squares and roots of 28742810

• 28742810 squared (28742810²) is 826149126696100
• 28742810 cubed (28742810³) is 23745847380291930041000
• The square root of 28742810 is 5361.2321345003
• The cube root of 28742810 is 306.3207438957

Scales and comparisons

• 28,742,810 seconds is equal to 47 weeks, 3 days, 16 hours, 6 minutes, 50 seconds.
• To count from 1 to 28,742,810 would take you about nineteen 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 28742810 cubic inches would be around 25.5 feet tall.

Recreational maths with 28742810

• 28742810 backwards is 01824782
• The number of decimal digits it has is: 8
• The sum of 28742810's digits is 32
• More coming soon!