28720086720

Names of 28720086720

• Cardinal: 28720086720 can be written as Twenty-eight billion, seven hundred twenty million, eighty-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.872008672 × 10¹⁰

Factors of 28720086720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 101

Divisors of 28720086720

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 37 39 40 41 48 52 60 64 65 74 78 80 82 96 104 111 120 123 130 148 156 160 164 185 192 195 205 208 222 240 246 260 296 312 320 328 370 390 410 416 444 480 481 492 520 533 555 592 615 624 656 740 780 820 832 888 960 962 984 1040 1066 1110 1184 1230 1248 1312 1369 1443 1480 1517 1560 1599 1640 1681 1776 1924 1968 2080 2132 2220 2368 2405 2460 2496 2624 2665 2738 2886 2960 3034 3120 3198 3280 3362 3552 3848 3936 4107 4160 4264 4440 4551 4810 4920 5043 5330 5476 5772 5920 6068 6240 6396 6560 6724 6845 7104 7215 7585 7696 7872 7995 8214 8405 8528 8880 9102 9620 9840 10086 10660 10952 11544 11840 12136 12480 12792 13120 13448 13690 14430 15170 15392 15990 16428 16810 17056 17760 17797 18204 19240 19680 19721 20172 20535 21320 21853 21904 22755 23088 24272 25215 25584 26896 27380 28860 30340 30784 31980 32856 33620 34112 35520 35594 36408 38480 39360 39442 40344 41070 42640 43706 43808 45510 46176 48544 50430 51168 53391 53792 54760 56129 57720 59163 60680 62197 63960 65559 65712 67240 71188 72816 76960 78884 80688 82140 85280 87412 87616 88985 91020 92352 97088 98605 100860 102336 106782 107584 109265 109520 112258 115440 118326 121360 124394 127920 131118 131424 134480 142376 145632 153920 157768 161376 164280 168387 170560 174824 177970 182040 186591 197210 201720 213564 218530 219040 224516 230880 236652 242720 248788 255840 262236 262848 266955 268960 280645 284752 291264 295815 310985 315536 322752 327795 328560 336774 349648 355940 364080 373182 394420 403440 427128 437060 438080 449032 461760 473304 485440 497576 511680 524472 533910 537920 561290 569504 591630 621970 631072 655590 657120 673548 699296 711880 728160 729677 746364 788840 806880 808561 841935 854256 874120 898064 932955 946608 995152 1048944 1067820 1122580 1139008 1183260 1243940 1262144 1311180 1314240 1347096 1398592 1423760 1456320 1459354 1492728 1577680 1613760 1617122 1683870 1708512 1748240 1796128 1865910 1893216 1990304 2097888 2135640 2189031 2245160 2301289 2366520 2425683 2487880 2622360 2694192 2847520 2918708 2985456 3155360 3234244 3367740 3417024 3496480 3592256 3648385 3731820 3786432 3980608 4042805 4195776 4271280 4378062 4490320 4602578 4733040 4851366 4975760 5244720 5388384 5695040 5837416 5970912 6310720 6468488 6735480 6903867 6992960 7296770 7463640 8085610 8542560 8756124 8980640 9205156 9466080 9702732 9951520 10489440 10776768 10945155 11506445 11674832 11941824 12128415 12936976 13470960 13807734 14593540 14927280 16171220 17085120 17512248 17961280 18410312 18932160 19405464 19903040 20978880 21890310 23012890 23349664 24256830 25873952 26941920 27615468 29187080 29854560 29916757 32342440 34519335 35024496 36820624 38810928 43780620 46025780 46699328 48513660 51747904 53883840 55230936 58374160 59709120 59833514 64684880 69038670 70048992 73641248 77621856 87561240 89750271 92051560 97027320 110461872 116748320 119667028 129369760 138077340 140097984 147282496 149583785 155243712 175122480 179500542 184103120 194054640 220923744 233496640 239334056 258739520 276154680 299167570 350244960 359001084 368206240 388109280 441847488 448751355 478668112 552309360 598335140 700489920 718002168 736412480 776218560 897502710 957336224 1104618720 1196670280 1436004336 1795005420 1914672448 2209237440 2393340560 2872008672 3590010840 4786681120 5744017344 7180021680 9573362240 14360043360 28720086720
• Sum of all divisors σ(n): 103448065392
• Sum of proper divisors (its aliquot sum) s(n): 74727978672
• 28720086720 is an abundant number, because the sum of its proper divisors (74727978672) is greater than itself. Its abundance is 46007891952

Bases of 28720086720

• Binary: 11010101111110110011011111011000000₂
• Hexadecimal: 0x6AFD9BEC0
• Base-36: D6Z74QO

Squares and roots of 28720086720

• 28720086720 squared (28720086720²) is 824843381204320358400
• 28720086720 cubed (28720086720³) is 23689573438606098731909480448000
• The square root of 28720086720 is 169470.0171711797
• The cube root of 28720086720 is 3062.3999967789

Scales and comparisons

• 28,720,086,720 seconds is equal to 913 years, 10 weeks, 6 days, 9 hours, 52 minutes.
• To count from 1 to 28,720,086,720 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 28720086720 cubic inches would be around 255.2 feet tall.

Recreational maths with 28720086720

• 28720086720 backwards is 02768002782
• The number of decimal digits it has is: 11
• The sum of 28720086720's digits is 42
• More coming soon!