28713621840

Names of 28713621840

• Cardinal: 28713621840 can be written as Twenty-eight billion, seven hundred thirteen million, six hundred twenty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.871362184 × 10¹⁰

Factors of 28713621840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 664

Divisors of 28713621840

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 41 48 60 67 80 82 97 120 123 134 164 194 201 205 240 246 268 291 328 335 388 402 410 449 485 492 536 582 615 656 670 776 804 820 898 970 984 1005 1072 1164 1230 1340 1347 1455 1552 1608 1640 1796 1940 1968 2010 2245 2328 2460 2680 2694 2747 2910 3216 3280 3592 3880 3977 4020 4490 4656 4920 5360 5388 5494 5820 6499 6735 7184 7760 7954 8040 8241 8980 9840 10776 10988 11640 11931 12998 13470 13735 15908 16080 16482 17960 18409 19497 19885 21552 21976 23280 23862 25996 26940 27470 30083 31816 32495 32964 35920 36818 38994 39770 41205 43553 43952 47724 51992 53880 54940 55227 59655 60166 63632 64990 65928 73636 77988 79540 82410 87106 90249 92045 95448 97485 103984 107760 109880 110454 119310 120332 129980 130659 131856 147272 150415 155976 159080 164820 174212 180498 184090 190896 194970 217765 219760 220908 238620 240664 259960 261318 266459 276135 294544 300830 311952 318160 329640 348424 360996 368180 389940 435530 441816 451245 477240 481328 519920 522636 532918 552270 601660 653295 659280 696848 721992 736360 779880 799377 871060 883632 902490 954480 1045272 1065836 1104540 1203320 1233403 1306590 1332295 1443984 1472720 1559760 1598754 1742120 1785673 1804980 2090544 2131672 2209080 2406640 2466806 2613180 2664590 2918051 3197508 3484240 3571346 3609960 3700209 3996885 4263344 4418160 4933612 5226360 5329180 5357019 5836102 6167015 6395016 7142692 7219920 7400418 7993770 8754153 8928365 9867224 10452720 10658360 10714038 11672204 12334030 12790032 14285384 14590255 14800836 15987540 17508306 17856730 18501045 19734448 21316720 21428076 23344408 24668060 26785095 28570768 29180510 29601672 31975080 35016612 35713460 37002090 42856152 43770765 46688816 49336120 53570190 58361020 59203344 63950160 70033224 71426920 74004180 85712304 87541530 98672240 107140380 116722040 119640091 140066448 142853840 148008360 175083060 214280760 233444080 239280182 296016720 350166120 358920273 428561520 478560364 598200455 700332240 717840546 957120728 1196400910 1435681092 1794601365 1914241456 2392801820 2871362184 3589202730 4785603640 5742724368 7178405460 9571207280 14356810920 28713621840
• Sum of all divisors σ(n): 93706502400
• Sum of proper divisors (its aliquot sum) s(n): 64992880560
• 28713621840 is an abundant number, because the sum of its proper divisors (64992880560) is greater than itself. Its abundance is 36279258720

Bases of 28713621840

• Binary: 11010101111011101110001100101010000₂
• Hexadecimal: 0x6AF771950
• Base-36: D6VCKEO

Squares and roots of 28713621840

• 28713621840 squared (28713621840²) is 824472079170524985600
• 28713621840 cubed (28713621840³) is 23673579498940995310789845504000
• The square root of 28713621840 is 169450.9422812397
• The cube root of 28713621840 is 3062.1701978651

Scales and comparisons

• 28,713,621,840 seconds is equal to 913 years, 1 day, 14 hours, 4 minutes.
• To count from 1 to 28,713,621,840 would take you about one thousand, eight hundred twenty-six years!

  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 28713621840 cubic inches would be around 255.2 feet tall.

Recreational maths with 28713621840

• 28713621840 backwards is 04812631782
• The number of decimal digits it has is: 11
• The sum of 28713621840's digits is 42
• More coming soon!