28866240

Names of 28866240

• Cardinal: 28866240 can be written as Twenty-eight million, eight hundred sixty-six thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.886624 × 10⁷

Factors of 28866240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 280

Divisors of 28866240

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 32 36 39 40 45 48 52 54 60 64 65 72 78 80 90 96 104 108 117 120 130 135 144 156 160 180 192 195 208 216 234 240 257 260 270 288 312 320 351 360 390 416 432 468 480 514 520 540 576 585 624 702 720 771 780 832 864 936 960 1028 1040 1080 1170 1248 1285 1404 1440 1542 1560 1728 1755 1872 2056 2080 2160 2313 2340 2496 2570 2808 2880 3084 3120 3341 3510 3744 3855 4112 4160 4320 4626 4680 5140 5616 6168 6240 6682 6939 7020 7488 7710 8224 8640 9252 9360 10023 10280 11232 11565 12336 12480 13364 13878 14040 15420 16448 16705 18504 18720 20046 20560 22464 23130 24672 26728 27756 28080 30069 30840 33410 34695 37008 37440 40092 41120 46260 49344 50115 53456 55512 56160 60138 61680 66820 69390 74016 80184 82240 90207 92520 100230 106912 111024 112320 120276 123360 133640 138780 148032 150345 160368 180414 185040 200460 213824 222048 240552 246720 267280 277560 300690 320736 360828 370080 400920 444096 451035 481104 534560 555120 601380 641472 721656 740160 801840 902070 962208 1069120 1110240 1202760 1443312 1603680 1804140 1924416 2220480 2405520 2886624 3207360 3608280 4811040 5773248 7216560 9622080 14433120 28866240
• Sum of all divisors σ(n): 110093760
• Sum of proper divisors (its aliquot sum) s(n): 81227520
• 28866240 is an abundant number, because the sum of its proper divisors (81227520) is greater than itself. Its abundance is 52361280

Bases of 28866240

• Binary: 1101110000111011011000000₂
• Hexadecimal: 0x1B876C0
• Base-36: H6PC0

Squares and roots of 28866240

• 28866240 squared (28866240²) is 833259811737600
• 28866240 cubed (28866240³) is 24053077707972378624000
• The square root of 28866240 is 5372.7311490525
• The cube root of 28866240 is 306.7585945787

Scales and comparisons

• 28,866,240 seconds is equal to 47 weeks, 5 days, 2 hours, 24 minutes.
• To count from 1 to 28,866,240 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 28866240 cubic inches would be around 25.6 feet tall.

Recreational maths with 28866240

• 28866240 backwards is 04266882
• 28866240 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28866240's digits is 36
• More coming soon!