28929285

Names of 28929285

• Cardinal: 28929285 can be written as Twenty-eight million, nine hundred twenty-nine thousand, two hundred eighty-five.

Scientific notation

• Scientific notation: 2.8929285 × 10⁷

Factors of 28929285

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 49

Divisors of 28929285

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 7 9 11 15 21 23 27 33 35 45 55 63 69 77 99 105 115 121 135 161 165 189 207 231 253 297 315 345 363 385 483 495 605 621 693 759 805 847 945 1035 1089 1155 1265 1331 1449 1485 1771 1815 2079 2277 2415 2541 2783 3105 3267 3465 3795 3993 4235 4347 5313 5445 6655 6831 7245 7623 8349 8855 9317 10395 11385 11979 12705 13915 15939 16335 19481 19965 21735 22869 25047 26565 27951 30613 34155 35937 38115 41745 46585 47817 58443 59895 75141 79695 83853 91839 97405 114345 125235 139755 153065 175329 179685 214291 239085 251559 275517 292215 375705 419265 459195 525987 642873 826551 876645 1071455 1257795 1377585 1928619 2629935 3214365 4132755 5785857 9643095 28929285
• Sum of all divisors σ(n): 67461120
• Sum of proper divisors (its aliquot sum) s(n): 38531835
• 28929285 is an abundant number, because the sum of its proper divisors (38531835) is greater than itself. Its abundance is 9602550

Bases of 28929285

• Binary: 1101110010110110100000101₂
• Hexadecimal: 0x1B96D05
• Base-36: H81Z9

Squares and roots of 28929285

• 28929285 squared (28929285²) is 836903530611225
• 28929285 cubed (28929285³) is 24211020754558352224125
• The square root of 28929285 is 5378.5950767835
• The cube root of 28929285 is 306.9817564589

Scales and comparisons

• 28,929,285 seconds is equal to 47 weeks, 5 days, 19 hours, 54 minutes, 45 seconds.
• To count from 1 to 28,929,285 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 28929285 cubic inches would be around 25.6 feet tall.

Recreational maths with 28929285

• 28929285 backwards is 58292982
• 28929285 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28929285's digits is 45
• More coming soon!