28688001

Names of 28688001

• Cardinal: 28688001 can be written as Twenty-eight million, six hundred eighty-eight thousand and one.

Scientific notation

• Scientific notation: 2.8688001 × 10⁷

Factors of 28688001

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 203511

Divisors of 28688001

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 47 141 203461 610383 9562667 28688001
• Sum of all divisors σ(n): 39064704
• Sum of proper divisors (its aliquot sum) s(n): 10376703
• 28688001 is a deficient number, because the sum of its proper divisors (10376703) is less than itself. Its deficiency is 18311298

Bases of 28688001

• Binary: 1101101011011111010000001₂
• Hexadecimal: 0x1B5BE81
• Base-36: H2VSX

Squares and roots of 28688001

• 28688001 squared (28688001²) is 823001401376001
• 28688001 cubed (28688001³) is 23610265025676118064001
• The square root of 28688001 is 5356.1180905577
• The cube root of 28688001 is 306.1259146893

Scales and comparisons

• 28,688,001 seconds is equal to 47 weeks, 3 days, 53 minutes, 21 seconds.
• To count from 1 to 28,688,001 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 28688001 cubic inches would be around 25.5 feet tall.

Recreational maths with 28688001

• 28688001 backwards is 10088682
• The number of decimal digits it has is: 8
• The sum of 28688001's digits is 33
• More coming soon!