28401142

Names of 28401142

• Cardinal: 28401142 can be written as Twenty-eight million, four hundred one thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 2.8401142 × 10⁷

Factors of 28401142

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 924

Divisors of 28401142

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 7 11 14 22 77 154 311 593 622 1186 2177 3421 4151 4354 6523 6842 8302 13046 23947 45661 47894 91322 184423 368846 1290961 2028653 2581922 4057306 14200571 28401142
• Sum of all divisors σ(n): 53374464
• Sum of proper divisors (its aliquot sum) s(n): 24973322
• 28401142 is a deficient number, because the sum of its proper divisors (24973322) is less than itself. Its deficiency is 3427820

Bases of 28401142

• Binary: 1101100010101110111110110₂
• Hexadecimal: 0x1B15DF6
• Base-36: GWQGM

Squares and roots of 28401142

• 28401142 squared (28401142²) is 806624866904164
• 28401142 cubed (28401142³) is 22909067385676262155288
• The square root of 28401142 is 5329.2721829533
• The cube root of 28401142 is 305.1021497851

Scales and comparisons

• 28,401,142 seconds is equal to 46 weeks, 6 days, 17 hours, 12 minutes, 22 seconds.
• To count from 1 to 28,401,142 would take you about eighteen 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 28401142 cubic inches would be around 25.4 feet tall.

Recreational maths with 28401142

• 28401142 backwards is 24110482
• 28401142 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28401142's digits is 22
• More coming soon!