28254240

Names of 28254240

• Cardinal: 28254240 can be written as Twenty-eight million, two hundred fifty-four thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.825424 × 10⁷

Factors of 28254240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2820

Divisors of 28254240

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 70 72 80 84 90 96 105 112 120 126 140 144 160 168 180 210 224 240 252 280 288 315 336 360 420 480 504 560 630 672 720 840 1008 1120 1260 1440 1680 2016 2520 2803 3360 5040 5606 8409 10080 11212 14015 16818 19621 22424 25227 28030 33636 39242 42045 44848 50454 56060 58863 67272 78484 84090 89696 98105 100908 112120 117726 126135 134544 156968 168180 176589 196210 201816 224240 235452 252270 269088 294315 313936 336360 353178 392420 403632 448480 470904 504540 588630 627872 672720 706356 784840 807264 882945 941808 1009080 1177260 1345440 1412712 1569680 1765890 1883616 2018160 2354520 2825424 3139360 3531780 4036320 4709040 5650848 7063560 9418080 14127120 28254240
• Sum of all divisors σ(n): 110230848
• Sum of proper divisors (its aliquot sum) s(n): 81976608
• 28254240 is an abundant number, because the sum of its proper divisors (81976608) is greater than itself. Its abundance is 53722368

Bases of 28254240

• Binary: 1101011110010000000100000₂
• Hexadecimal: 0x1AF2020
• Base-36: GTL40

Squares and roots of 28254240

• 28254240 squared (28254240²) is 798302077977600
• 28254240 cubed (28254240³) is 22555418503677825024000
• The square root of 28254240 is 5315.4717570503
• The cube root of 28254240 is 304.5752036661

Scales and comparisons

• 28,254,240 seconds is equal to 46 weeks, 5 days, 24 minutes.
• To count from 1 to 28,254,240 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 28254240 cubic inches would be around 25.4 feet tall.

Recreational maths with 28254240

• 28254240 backwards is 04245282
• The number of decimal digits it has is: 8
• The sum of 28254240's digits is 27
• More coming soon!