28455840

Names of 28455840

• Cardinal: 28455840 can be written as Twenty-eight million, four hundred fifty-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.845584 × 10⁷

Factors of 28455840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 958

Divisors of 28455840

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 54 56 60 63 70 72 80 84 90 96 105 108 112 120 126 135 140 144 160 168 180 189 210 216 224 240 252 270 280 288 315 336 360 378 420 432 480 504 540 560 630 672 720 756 840 864 941 945 1008 1080 1120 1260 1440 1512 1680 1882 1890 2016 2160 2520 2823 3024 3360 3764 3780 4320 4705 5040 5646 6048 6587 7528 7560 8469 9410 10080 11292 13174 14115 15056 15120 16938 18820 19761 22584 25407 26348 28230 30112 30240 32935 33876 37640 39522 42345 45168 50814 52696 56460 59283 65870 67752 75280 79044 84690 90336 98805 101628 105392 112920 118566 127035 131740 135504 150560 158088 169380 177849 197610 203256 210784 225840 237132 254070 263480 271008 296415 316176 338760 355698 395220 406512 451680 474264 508140 526960 592830 632352 677520 711396 790440 813024 889245 948528 1016280 1053920 1185660 1355040 1422792 1580880 1778490 1897056 2032560 2371320 2845584 3161760 3556980 4065120 4742640 5691168 7113960 9485280 14227920 28455840
• Sum of all divisors σ(n): 113944320
• Sum of proper divisors (its aliquot sum) s(n): 85488480
• 28455840 is an abundant number, because the sum of its proper divisors (85488480) is greater than itself. Its abundance is 57032640

Bases of 28455840

• Binary: 1101100100011001110100000₂
• Hexadecimal: 0x1B233A0
• Base-36: GXWO0

Squares and roots of 28455840

• 28455840 squared (28455840²) is 809734830105600
• 28455840 cubed (28455840³) is 23041684767912136704000
• The square root of 28455840 is 5334.4015596879
• The cube root of 28455840 is 305.2978904511

Scales and comparisons

• 28,455,840 seconds is equal to 47 weeks, 8 hours, 24 minutes.
• To count from 1 to 28,455,840 would take you about eighteen 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 28455840 cubic inches would be around 25.4 feet tall.

Recreational maths with 28455840

• 28455840 backwards is 04855482
• 28455840 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28455840's digits is 36
• More coming soon!