28120402

Names of 28120402

• Cardinal: 28120402 can be written as Twenty-eight million, one hundred twenty thousand, four hundred two.

Scientific notation

• Scientific notation: 2.8120402 × 10⁷

Factors of 28120402

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 198104

Divisors of 28120402

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 71 142 198031 396062 14060201 28120402
• Sum of all divisors σ(n): 42774912
• Sum of proper divisors (its aliquot sum) s(n): 14654510
• 28120402 is a deficient number, because the sum of its proper divisors (14654510) is less than itself. Its deficiency is 13465892

Bases of 28120402

• Binary: 1101011010001010101010010₂
• Hexadecimal: 0x1AD1552
• Base-36: GQPUA

Squares and roots of 28120402

• 28120402 squared (28120402²) is 790757008641604
• 28120402 cubed (28120402³) is 22236404967319378404808
• The square root of 28120402 is 5302.8673375827
• The cube root of 28120402 is 304.0935264519

Scales and comparisons

• 28,120,402 seconds is equal to 46 weeks, 3 days, 11 hours, 13 minutes, 22 seconds.
• To count from 1 to 28,120,402 would take you about seventeen 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 28120402 cubic inches would be around 25.3 feet tall.

Recreational maths with 28120402

• 28120402 backwards is 20402182
• The number of decimal digits it has is: 8
• The sum of 28120402's digits is 19
• More coming soon!