28224720

Names of 28224720

• Cardinal: 28224720 can be written as Twenty-eight million, two hundred twenty-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.822472 × 10⁷

Factors of 28224720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 262

Divisors of 28224720

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 73 80 90 108 120 135 144 146 179 180 216 219 240 270 292 358 360 365 432 438 537 540 584 657 716 720 730 876 895 1074 1080 1095 1168 1314 1432 1460 1611 1752 1790 1971 2148 2160 2190 2628 2685 2864 2920 3222 3285 3504 3580 3942 4296 4380 4833 5256 5370 5840 6444 6570 7160 7884 8055 8592 8760 9666 9855 10512 10740 12888 13067 13140 14320 15768 16110 17520 19332 19710 21480 24165 25776 26134 26280 31536 32220 38664 39201 39420 42960 48330 52268 52560 64440 65335 77328 78402 78840 96660 104536 117603 128880 130670 156804 157680 193320 196005 209072 235206 261340 313608 352809 386640 392010 470412 522680 588015 627216 705618 784020 940824 1045360 1176030 1411236 1568040 1764045 1881648 2352060 2822472 3136080 3528090 4704120 5644944 7056180 9408240 14112360 28224720
• Sum of all divisors σ(n): 99100800
• Sum of proper divisors (its aliquot sum) s(n): 70876080
• 28224720 is an abundant number, because the sum of its proper divisors (70876080) is greater than itself. Its abundance is 42651360

Bases of 28224720

• Binary: 1101011101010110011010000₂
• Hexadecimal: 0x1AEACD0
• Base-36: GSYC0

Squares and roots of 28224720

• 28224720 squared (28224720²) is 796634819078400
• 28224720 cubed (28224720³) is 22484794710738498048000
• The square root of 28224720 is 5312.6942317435
• The cube root of 28224720 is 304.4690934195

Scales and comparisons

• 28,224,720 seconds is equal to 46 weeks, 4 days, 16 hours, 12 minutes.
• To count from 1 to 28,224,720 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 28224720 cubic inches would be around 25.4 feet tall.

Recreational maths with 28224720

• 28224720 backwards is 02742282
• 28224720 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28224720's digits is 27
• More coming soon!