28240380

Names of 28240380

• Cardinal: 28240380 can be written as Twenty-eight million, two hundred forty thousand, three hundred eighty.

Scientific notation

• Scientific notation: 2.824038 × 10⁷

Factors of 28240380

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 289

Divisors of 28240380

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 31 35 36 42 45 54 60 62 63 70 84 90 93 105 108 124 126 135 140 155 180 186 189 210 217 241 252 270 279 310 315 372 378 420 434 465 482 540 558 620 630 651 723 756 837 868 930 945 964 1085 1116 1205 1260 1302 1395 1446 1674 1687 1860 1890 1953 2169 2170 2410 2604 2790 2892 3255 3348 3374 3615 3780 3906 4185 4338 4340 4820 5061 5580 5859 6507 6510 6748 7230 7471 7812 8370 8435 8676 9765 10122 10845 11718 13014 13020 14460 14942 15183 16740 16870 19530 20244 21690 22413 23436 25305 26028 29295 29884 30366 32535 33740 37355 39060 43380 44826 45549 50610 52297 58590 60732 65070 67239 74710 75915 89652 91098 101220 104594 112065 117180 130140 134478 149420 151830 156891 182196 201717 209188 224130 227745 261485 268956 303660 313782 336195 403434 448260 455490 470673 522970 627564 672390 784455 806868 910980 941346 1008585 1045940 1344780 1412019 1568910 1882692 2017170 2353365 2824038 3137820 4034340 4706730 5648076 7060095 9413460 14120190 28240380
• Sum of all divisors σ(n): 104079360
• Sum of proper divisors (its aliquot sum) s(n): 75838980
• 28240380 is an abundant number, because the sum of its proper divisors (75838980) is greater than itself. Its abundance is 47598600

Bases of 28240380

• Binary: 1101011101110100111111100₂
• Hexadecimal: 0x1AEE9FC
• Base-36: GTAF0

Squares and roots of 28240380

• 28240380 squared (28240380²) is 797519062544400
• 28240380 cubed (28240380³) is 22522241383497622872000
• The square root of 28240380 is 5314.1678558359
• The cube root of 28240380 is 304.5253928203

Scales and comparisons

• 28,240,380 seconds is equal to 46 weeks, 4 days, 20 hours, 33 minutes.
• To count from 1 to 28,240,380 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 28240380 cubic inches would be around 25.4 feet tall.

Recreational maths with 28240380

• 28240380 backwards is 08304282
• 28240380 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28240380's digits is 27
• More coming soon!