28887768

Names of 28887768

• Cardinal: 28887768 can be written as Twenty-eight million, eight hundred eighty-seven thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 2.8887768 × 10⁷

Factors of 28887768

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4434

Divisors of 28887768

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 28 36 39 42 52 56 63 72 78 84 91 104 117 126 156 168 182 234 252 273 312 364 468 504 546 728 819 936 1092 1638 2184 3276 4409 6552 8818 13227 17636 26454 30863 35272 39681 52908 57317 61726 79362 92589 105816 114634 123452 158724 171951 185178 229268 246904 277767 317448 343902 370356 401219 458536 515853 555534 687804 740712 802438 1031706 1111068 1203657 1375608 1604876 2063412 2222136 2407314 3209752 3610971 4126824 4814628 7221942 9629256 14443884 28887768
• Sum of all divisors σ(n): 96314400
• Sum of proper divisors (its aliquot sum) s(n): 67426632
• 28887768 is an abundant number, because the sum of its proper divisors (67426632) is greater than itself. Its abundance is 38538864

Bases of 28887768

• Binary: 1101110001100101011011000₂
• Hexadecimal: 0x1B8CAD8
• Base-36: H75Y0

Squares and roots of 28887768

• 28887768 squared (28887768²) is 834503140021824
• 28887768 cubed (28887768³) is 24106933104221966648832
• The square root of 28887768 is 5374.7342259873
• The cube root of 28887768 is 306.8348342507

Scales and comparisons

• 28,887,768 seconds is equal to 47 weeks, 5 days, 8 hours, 22 minutes, 48 seconds.
• To count from 1 to 28,887,768 would take you about nineteen 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 28887768 cubic inches would be around 25.6 feet tall.

Recreational maths with 28887768

• 28887768 backwards is 86778882
• The number of decimal digits it has is: 8
• The sum of 28887768's digits is 54
• More coming soon!