28168830

Names of 28168830

• Cardinal: 28168830 can be written as Twenty-eight million, one hundred sixty-eight thousand, eight hundred thirty.

Scientific notation

• Scientific notation: 2.816883 × 10⁷

Factors of 28168830

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 46

Divisors of 28168830

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 19 27 30 34 38 45 51 54 57 85 90 95 102 114 135 153 170 171 190 255 270 285 289 306 323 342 361 459 510 513 570 578 646 722 765 855 867 918 969 1026 1083 1445 1530 1615 1710 1734 1805 1938 2166 2295 2565 2601 2890 2907 3230 3249 3610 4335 4590 4845 5130 5202 5415 5491 5814 6137 6498 7803 8670 8721 9690 9747 10830 10982 12274 13005 14535 15606 16245 16473 17442 18411 19494 26010 27455 29070 30685 32490 32946 36822 39015 43605 48735 49419 54910 55233 61370 78030 82365 87210 92055 97470 98838 104329 110466 148257 164730 165699 184110 208658 247095 276165 296514 312987 331398 494190 521645 552330 625974 741285 828495 938961 1043290 1482570 1564935 1656990 1877922 2816883 3129870 4694805 5633766 9389610 14084415 28168830
• Sum of all divisors σ(n): 84216240
• Sum of proper divisors (its aliquot sum) s(n): 56047410
• 28168830 is an abundant number, because the sum of its proper divisors (56047410) is greater than itself. Its abundance is 27878580

Bases of 28168830

• Binary: 1101011011101001001111110₂
• Hexadecimal: 0x1ADD27E
• Base-36: GRR7I

Squares and roots of 28168830

• 28168830 squared (28168830²) is 793482983568900
• 28168830 cubed (28168830³) is 22351487272045137387000
• The square root of 28168830 is 5307.4315822251
• The cube root of 28168830 is 304.2679928469

Scales and comparisons

• 28,168,830 seconds is equal to 46 weeks, 4 days, 40 minutes, 30 seconds.
• To count from 1 to 28,168,830 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 28168830 cubic inches would be around 25.4 feet tall.

Recreational maths with 28168830

• 28168830 backwards is 03886182
• The number of decimal digits it has is: 8
• The sum of 28168830's digits is 36
• More coming soon!