28072842

Names of 28072842

• Cardinal: 28072842 can be written as Twenty-eight million, seventy-two thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 2.8072842 × 10⁷

Factors of 28072842

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 435

Divisors of 28072842

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 7 14 19 21 38 42 57 114 127 133 254 266 277 381 399 554 762 798 831 889 1662 1778 1939 2413 2667 3878 4826 5263 5334 5817 7239 10526 11634 14478 15789 16891 31578 33782 35179 36841 50673 70358 73682 101346 105537 110523 211074 221046 246253 492506 668401 738759 1336802 1477518 2005203 4010406 4678807 9357614 14036421 28072842
• Sum of all divisors σ(n): 68321280
• Sum of proper divisors (its aliquot sum) s(n): 40248438
• 28072842 is an abundant number, because the sum of its proper divisors (40248438) is greater than itself. Its abundance is 12175596

Bases of 28072842

• Binary: 1101011000101101110001010₂
• Hexadecimal: 0x1AC5B8A
• Base-36: GPP56

Squares and roots of 28072842

• 28072842 squared (28072842²) is 788084457956964
• 28072842 cubed (28072842³) is 22123770470881493171688
• The square root of 28072842 is 5298.3810734979
• The cube root of 28072842 is 303.9219920459

Scales and comparisons

• 28,072,842 seconds is equal to 46 weeks, 2 days, 22 hours, 42 seconds.
• To count from 1 to 28,072,842 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 28072842 cubic inches would be around 25.3 feet tall.

Recreational maths with 28072842

• 28072842 backwards is 24827082
• The number of decimal digits it has is: 8
• The sum of 28072842's digits is 33
• More coming soon!