28681429140

Names of 28681429140

• Cardinal: 28681429140 can be written as Twenty-eight billion, six hundred eighty-one million, four hundred twenty-nine thousand, one hundred forty.

Scientific notation

• Scientific notation: 2.868142914 × 10¹⁰

Factors of 28681429140

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1020

Divisors of 28681429140

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 13 14 15 18 20 21 26 28 30 35 36 39 42 43 45 52 60 63 65 70 78 84 86 90 91 105 117 126 129 130 140 156 172 180 182 195 210 215 234 252 258 260 273 301 315 364 387 390 420 430 455 468 516 546 559 585 602 630 645 774 780 819 860 903 910 947 1092 1118 1170 1204 1260 1290 1365 1505 1548 1638 1677 1806 1820 1849 1894 1935 2236 2340 2580 2709 2730 2795 2841 3010 3276 3354 3612 3698 3788 3870 3913 4095 4515 4735 5031 5418 5460 5547 5590 5682 6020 6629 6708 7396 7740 7826 8190 8385 8523 9030 9245 9470 10062 10836 11094 11180 11364 11739 12311 12943 13258 13545 14205 15652 16380 16641 16770 17046 18060 18490 18940 19565 19887 20124 22188 23478 24037 24622 25155 25886 26516 27090 27735 28410 33145 33282 33540 34092 35217 36933 36980 38829 39130 39774 40721 42615 46956 48074 49244 50310 51772 54180 55470 56820 58695 59661 61555 64715 66290 66564 70434 72111 73866 77658 78260 79548 81442 83205 85230 86177 96148 99435 100620 110799 110940 116487 117390 119322 120185 122163 123110 129430 132580 140868 144222 147732 155316 162884 166410 168259 170460 172354 176085 184665 194145 198870 203605 216333 221598 232974 234780 238644 240370 244326 246220 258531 258860 285047 288444 298305 332820 336518 344708 352170 360555 366489 369330 388290 397740 407210 430885 432666 443196 465948 480740 488652 504777 517062 529373 553995 570094 582435 596610 610815 673036 704340 721110 732978 738660 775593 776580 814420 841295 855141 861770 865332 1009554 1034124 1058746 1081665 1107990 1140188 1164870 1193220 1221630 1292655 1425235 1442220 1465956 1514331 1551186 1588119 1682590 1710282 1723540 1751003 1832445 2019108 2117492 2163330 2215980 2329740 2443260 2523885 2565423 2585310 2646865 2850470 3028662 3102372 3176238 3365180 3420564 3502006 3664890 3705611 3877965 4275705 4326660 4764357 5047770 5130846 5170620 5253009 5293730 5700940 6057324 6352476 7004012 7329780 7411222 7571655 7755930 7940595 8551410 8755015 9528714 10095540 10261692 10506018 10587460 11116833 12257021 12827115 14822444 15143310 15511860 15759027 15881190 17102820 17510030 18528055 19057428 21012036 22233666 22763039 23821785 24514042 25654230 26265045 30286620 31518054 31762380 33350499 35020060 36771063 37056110 44467332 45526078 47643570 49028084 51308460 52530090 55584165 61285105 63036108 66700998 68289117 73542126 74112220 78795135 91052156 95287140 105060180 110313189 111168330 113815195 122570210 133401996 136578234 147084252 157590270 159341273 166752495 183855315 204867351 220626378 222336660 227630390 245140420 273156468 315180540 318682546 333504990 341445585 367710630 409734702 441252756 455260780 478023819 551565945 637365092 667009980 682891170 735421260 796706365 819469404 956047638 1024336755 1103131890 1365782340 1434071457 1593412730 1912095276 2048673510 2206263780 2390119095 2868142914 3186825460 4097347020 4780238190 5736285828 7170357285 9560476380 14340714570 28681429140
• Sum of all divisors σ(n): 109741177728
• Sum of proper divisors (its aliquot sum) s(n): 81059748588
• 28681429140 is an abundant number, because the sum of its proper divisors (81059748588) is greater than itself. Its abundance is 52378319448

Bases of 28681429140

• Binary: 11010101101100010111110000010010100₂
• Hexadecimal: 0x6AD8BE094
• Base-36: D6C6KD0

Squares and roots of 28681429140

• 28681429140 squared (28681429140²) is 822624377512841139600
• 28681429140 cubed (28681429140³) is 23594042792471162585514247944000
• The square root of 28681429140 is 169355.9244313585
• The cube root of 28681429140 is 3061.0253708405

Scales and comparisons

• 28,681,429,140 seconds is equal to 911 years, 50 weeks, 6 days, 23 hours, 39 minutes.
• To count from 1 to 28,681,429,140 would take you about one thousand, eight hundred twenty-three 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 28681429140 cubic inches would be around 255.1 feet tall.

Recreational maths with 28681429140

• 28681429140 backwards is 04192418682
• 28681429140 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28681429140's digits is 45
• More coming soon!