28065072

Names of 28065072

• Cardinal: 28065072 can be written as Twenty-eight million, sixty-five thousand and seventy-two.

Scientific notation

• Scientific notation: 2.8065072 × 10⁷

Factors of 28065072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 940

Divisors of 28065072

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 101 112 168 202 303 336 404 606 707 808 827 1212 1414 1616 1654 2121 2424 2481 2828 3308 4242 4848 4962 5656 5789 6616 8484 9924 11312 11578 13232 16968 17367 19848 23156 33936 34734 39696 46312 69468 83527 92624 138936 167054 250581 277872 334108 501162 584689 668216 1002324 1169378 1336432 1754067 2004648 2338756 3508134 4009296 4677512 7016268 9355024 14032536 28065072
• Sum of all divisors σ(n): 83780352
• Sum of proper divisors (its aliquot sum) s(n): 55715280
• 28065072 is an abundant number, because the sum of its proper divisors (55715280) is greater than itself. Its abundance is 27650208

Bases of 28065072

• Binary: 1101011000011110100110000₂
• Hexadecimal: 0x1AC3D30
• Base-36: GPJ5C

Squares and roots of 28065072

• 28065072 squared (28065072²) is 787648266365184
• 28065072 cubed (28065072³) is 22105405306214067253248
• The square root of 28065072 is 5297.6477799113
• The cube root of 28065072 is 303.8939496199

Scales and comparisons

• 28,065,072 seconds is equal to 46 weeks, 2 days, 19 hours, 51 minutes, 12 seconds.
• To count from 1 to 28,065,072 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 28065072 cubic inches would be around 25.3 feet tall.

Recreational maths with 28065072

• 28065072 backwards is 27056082
• The number of decimal digits it has is: 8
• The sum of 28065072's digits is 30
• More coming soon!