28218109920

Names of 28218109920

• Cardinal: 28218109920 can be written as Twenty-eight billion, two hundred eighteen million, one hundred nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.821810992 × 10¹⁰

Factors of 28218109920

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 341

Divisors of 28218109920

• Number of divisors d(n): 1152
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 13 14 15 16 19 20 21 22 24 26 28 30 32 33 35 38 39 40 42 44 48 52 55 56 57 60 65 66 70 76 77 78 80 84 88 91 95 96 104 105 110 112 114 120 121 130 132 133 140 143 152 154 156 160 165 168 176 182 190 195 208 209 210 220 224 228 231 240 242 247 260 264 266 273 280 281 285 286 304 308 312 330 336 352 363 364 380 385 390 399 416 418 420 429 440 455 456 462 480 484 494 520 528 532 546 560 562 570 572 605 608 616 624 627 660 665 672 715 726 728 741 760 770 780 798 836 840 843 847 858 880 910 912 924 968 988 1001 1040 1045 1056 1064 1092 1120 1124 1140 1144 1155 1210 1232 1235 1248 1254 1320 1330 1365 1405 1430 1452 1456 1463 1482 1520 1540 1560 1573 1596 1672 1680 1686 1694 1716 1729 1760 1815 1820 1824 1848 1936 1967 1976 1995 2002 2080 2090 2128 2145 2184 2248 2280 2288 2299 2310 2420 2464 2470 2508 2541 2640 2660 2717 2730 2810 2860 2904 2912 2926 2964 3003 3040 3080 3091 3120 3135 3146 3192 3344 3360 3372 3388 3432 3458 3630 3640 3653 3696 3705 3872 3934 3952 3990 4004 4180 4215 4235 4256 4290 4368 4389 4496 4560 4576 4598 4620 4719 4840 4940 5005 5016 5082 5187 5280 5320 5339 5434 5460 5620 5720 5808 5852 5901 5928 6006 6160 6182 6240 6270 6292 6384 6688 6744 6776 6864 6897 6916 7260 7280 7306 7315 7392 7410 7865 7868 7904 7980 8008 8151 8360 8430 8470 8580 8645 8736 8778 8992 9120 9196 9240 9273 9438 9680 9835 9880 10010 10032 10164 10374 10640 10678 10868 10920 10959 11011 11240 11440 11495 11616 11704 11802 11856 12012 12320 12364 12540 12584 12705 12768 13488 13552 13585 13728 13794 13832 14520 14560 14612 14630 14820 15015 15455 15730 15736 15960 16016 16017 16093 16302 16720 16860 16940 17160 17290 17556 18265 18392 18480 18546 18876 19019 19360 19670 19760 20020 20064 20328 20748 21280 21356 21637 21736 21840 21918 21945 22022 22480 22880 22990 23408 23595 23604 23712 24024 24728 25080 25168 25410 25571 25935 26695 26976 27104 27170 27588 27664 29040 29224 29260 29505 29640 29887 30030 30910 31460 31472 31920 32032 32034 32186 32604 33033 33440 33720 33880 34001 34320 34485 34580 35112 36530 36784 36960 37092 37373 37752 38038 39340 39520 40040 40183 40656 40755 41496 42712 43274 43472 43680 43836 43890 44044 44960 45980 46365 46816 47190 47208 48048 48279 49456 50160 50336 50820 51142 51870 53390 54340 54795 55055 55176 55328 57057 58080 58448 58520 58729 59010 59280 59774 60060 61820 62920 62944 63840 64068 64372 64911 65208 66066 67440 67760 68002 68640 68970 69160 69407 70224 73060 73568 74184 74746 75504 76076 76713 78680 80080 80085 80366 80465 81312 81510 82992 85424 86548 86944 87672 87780 88088 89661 91960 92730 94380 94416 95095 96096 96558 98912 100320 101640 102003 102284 103740 106780 108185 108680 109590 110110 110352 112119 114114 116896 117040 117458 118020 118560 119548 120120 120549 123640 125840 127855 128136 128744 129822 130416 132132 134880 135520 136004 137940 138320 138814 140448 146120 148368 149435 149492 151008 152152 153426 157360 160160 160170 160732 160930 163020 165165 165984 170005 170848 173096 175344 175560 176176 176187 179322 183920 185460 186865 188760 188832 190190 193116 200915 203280 204006 204568 207480 208221 209209 213560 216370 217360 219180 220220 220704 224238 228228 234080 234916 236040 238007 239096 240240 241098 241395 247280 251680 255710 256272 257488 259644 260832 264264 272008 275880 276640 277628 281281 285285 292240 293645 296736 298870 298984 304304 306852 314720 320340 321464 321860 324555 326040 330330 340010 346192 347035 350688 351120 352352 352374 358644 367840 370920 373730 377520 380380 383565 386232 401830 406560 408012 409136 411103 414960 416442 418418 427120 432740 434720 438360 440440 442013 448305 448476 456456 469832 472080 476014 478192 480480 482196 482790 485849 494560 510015 511420 512544 514976 519288 528528 544016 551760 555256 560595 562562 570570 584480 587290 597740 597968 602745 608608 613704 627627 640680 642928 643720 646019 649110 652080 660660 680020 692384 694070 702240 704748 714021 717288 741840 747460 755040 760760 763477 767130 772464 803660 816024 818272 822206 829920 832884 836836 843843 854240 865480 876720 880880 880935 884026 896610 896952 912912 939664 944160 952028 956384 964392 965580 971698 1020030 1022840 1038576 1041105 1046045 1057056 1088032 1103520 1110512 1121190 1125124 1141140 1174580 1190035 1195480 1195936 1205490 1227408 1233309 1255254 1281360 1285856 1287440 1292038 1298220 1304160 1321320 1326039 1360040 1388140 1406405 1409496 1428042 1434576 1457547 1483680 1494920 1521520 1526954 1534260 1544928 1607320 1632048 1644412 1665768 1673672 1687686 1730960 1753440 1761760 1761870 1768052 1793220 1793904 1825824 1879328 1904056 1928784 1931160 1938057 1943396 2040060 2045680 2055515 2077152 2082210 2092090 2210065 2221024 2242380 2250248 2282280 2290431 2349160 2380070 2390960 2410980 2429245 2454816 2466618 2510508 2562720 2574880 2584076 2596440 2642640 2652078 2720080 2776280 2812810 2818992 2856084 2869152 2915094 2989840 3043040 3053908 3068520 3094091 3138135 3214640 3230095 3264096 3288824 3331536 3347344 3375372 3461920 3523740 3536104 3570105 3586440 3587808 3808112 3817385 3857568 3862320 3876114 3886792 4080120 4091360 4111030 4164420 4184180 4219215 4420130 4484760 4500496 4522133 4564560 4580862 4698320 4760140 4781920 4821960 4858490 4933236 5021016 5168152 5192880 5285280 5304156 5344339 5440160 5552560 5625620 5637984 5712168 5830188 5979680 6107816 6137040 6166545 6188182 6276270 6429280 6460190 6577648 6630195 6663072 6694688 6750744 7047480 7072208 7140210 7172880 7287735 7616224 7634770 7724640 7752228 7773584 8160240 8222060 8328840 8368360 8398247 8438430 8840260 8969520 9000992 9044266 9129120 9161724 9282273 9396640 9520280 9643920 9690285 9716980 9866472 10042032 10336304 10385760 10608312 10688678 11105120 11251240 11424336 11452155 11660376 12215632 12274080 12333090 12376364 12552540 12920380 13155296 13260390 13501488 13566399 14094960 14144416 14280420 14345760 14575470 15269540 15470455 15504456 15547168 16033017 16320480 16444120 16657680 16736720 16796494 16876860 17680520 17939040 18088532 18323448 18564546 19040560 19287840 19380570 19433960 19732944 20084064 20672608 21216624 21377356 22502480 22610665 22848672 22904310 23320752 24431264 24666180 24752728 25105080 25194741 25840760 26520780 26721695 27002976 27132798 28189920 28560840 29150940 30539080 30940910 31008912 32066034 32888240 33315360 33473440 33592988 33753720 35361040 36177064 36646896 37129092 38081120 38761140 38867920 39465888 41991235 42433248 42754712 45004960 45221330 45808620 46411365 46641504 49332360 49505456 50210160 50389482 51681520 53041560 53443390 54265596 57121680 58301880 58787729 61078160 61881820 62017824 64132068 65776480 67185976 67507440 67831995 70722080 72354128 73293792 74258184 77522280 77735840 80165085 83982470 85509424 90442660 91617240 92822730 98664720 99010912 100420320 100778964 103363040 106083120 106886780 108531192 114243360 116603760 117575458 122156320 123763640 125973705 128264136 134371952 135014880 135663990 144708256 148516368 155044560 160330170 167964940 171018848 176363187 180885320 183234480 185645460 197329440 201557928 212166240 213773560 217062384 233207520 235150916 247527280 251947410 256528272 268743904 271327980 293938645 297032736 310089120 320660340 335929880 352726374 361770640 366468960 371290920 403115856 427547120 434124768 470301832 495054560 503894820 513056544 542655960 587877290 641320680 671859760 705452748 723541280 742581840 806231712 855094240 881815935 940603664 1007789640 1085311920 1175754580 1282641360 1343719520 1410905496 1485163680 1763631870 1881207328 2015579280 2170623840 2351509160 2565282720 2821810992 3527263740 4031158560 4703018320 5643621984 7054527480 9406036640 14109054960 28218109920
• Sum of all divisors σ(n): 127028321280
• Sum of proper divisors (its aliquot sum) s(n): 98810211360
• 28218109920 is an abundant number, because the sum of its proper divisors (98810211360) is greater than itself. Its abundance is 70592101440

Bases of 28218109920

• Binary: 11010010001111011100010111111100000₂
• Hexadecimal: 0x691EE2FE0
• Base-36: CYOC0YO

Squares and roots of 28218109920

• 28218109920 squared (28218109920²) is 796261727457202406400
• 28218109920 cubed (28218109920³) is 22469000950476419599483711488000
• The square root of 28218109920 is 167982.4690853185
• The cube root of 28218109920 is 3044.4532321403

Scales and comparisons

• 28,218,109,920 seconds is equal to 897 years, 12 weeks, 6 days, 11 hours, 52 minutes.
• To count from 1 to 28,218,109,920 would take you about one thousand, seven hundred ninety-four 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 28218109920 cubic inches would be around 253.7 feet tall.

Recreational maths with 28218109920

• 28218109920 backwards is 02990181282
• 28218109920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28218109920's digits is 42
• More coming soon!