28886220

Names of 28886220

• Cardinal: 28886220 can be written as Twenty-eight million, eight hundred eighty-six thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.888622 × 10⁷

Factors of 28886220

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1642

Divisors of 28886220

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 20 22 27 30 33 36 44 45 54 55 60 66 81 90 99 108 110 132 135 162 165 180 198 220 270 297 324 330 396 405 495 540 594 660 810 891 990 1188 1485 1620 1621 1782 1980 2970 3242 3564 4455 4863 5940 6484 8105 8910 9726 14589 16210 17820 17831 19452 24315 29178 32420 35662 43767 48630 53493 58356 71324 72945 87534 89155 97260 106986 131301 145890 160479 175068 178310 213972 218835 262602 267465 291780 320958 356620 437670 481437 525204 534930 641916 656505 802395 875340 962874 1069860 1313010 1444311 1604790 1925748 2407185 2626020 2888622 3209580 4814370 5777244 7221555 9628740 14443110 28886220
• Sum of all divisors σ(n): 98916048
• Sum of proper divisors (its aliquot sum) s(n): 70029828
• 28886220 is an abundant number, because the sum of its proper divisors (70029828) is greater than itself. Its abundance is 41143608

Bases of 28886220

• Binary: 1101110001100010011001100₂
• Hexadecimal: 0x1B8C4CC
• Base-36: H74R0

Squares and roots of 28886220

• 28886220 squared (28886220²) is 834413705888400
• 28886220 cubed (28886220³) is 24103057879307617848000
• The square root of 28886220 is 5374.5902169375
• The cube root of 28886220 is 306.8293533979

Scales and comparisons

• 28,886,220 seconds is equal to 47 weeks, 5 days, 7 hours, 57 minutes.
• To count from 1 to 28,886,220 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 28886220 cubic inches would be around 25.6 feet tall.

Recreational maths with 28886220

• 28886220 backwards is 02268882
• 28886220 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28886220's digits is 36
• More coming soon!