28213744

Names of 28213744

• Cardinal: 28213744 can be written as Twenty-eight million, two hundred thirteen thousand, seven hundred forty-four.

Scientific notation

• Scientific notation: 2.8213744 × 10⁷

Factors of 28213744

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 212

Divisors of 28213744

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 13 16 17 26 34 52 68 79 101 104 136 158 202 208 221 272 316 404 442 632 808 884 1027 1264 1313 1343 1616 1717 1768 2054 2626 2686 3434 3536 4108 5252 5372 6868 7979 8216 10504 10744 13736 15958 16432 17459 21008 21488 22321 27472 31916 34918 44642 63832 69836 89284 103727 127664 135643 139672 178568 207454 271286 279344 357136 414908 542572 829816 1085144 1659632 1763359 2170288 3526718 7053436 14106872 28213744
• Sum of all divisors σ(n): 63745920
• Sum of proper divisors (its aliquot sum) s(n): 35532176
• 28213744 is an abundant number, because the sum of its proper divisors (35532176) is greater than itself. Its abundance is 7318432

Bases of 28213744

• Binary: 1101011101000000111110000₂
• Hexadecimal: 0x1AE81F0
• Base-36: GSPV4

Squares and roots of 28213744

• 28213744 squared (28213744²) is 796015350497536
• 28213744 cubed (28213744³) is 22458573319007753334784
• The square root of 28213744 is 5311.6611337697
• The cube root of 28213744 is 304.4296210935

Scales and comparisons

• 28,213,744 seconds is equal to 46 weeks, 4 days, 13 hours, 9 minutes, 4 seconds.
• To count from 1 to 28,213,744 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 28213744 cubic inches would be around 25.4 feet tall.

Recreational maths with 28213744

• 28213744 backwards is 44731282
• The number of decimal digits it has is: 8
• The sum of 28213744's digits is 31
• More coming soon!