28684971840

Names of 28684971840

• Cardinal: 28684971840 can be written as Twenty-eight billion, six hundred eighty-four million, nine hundred seventy-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.868497184 × 10¹⁰

Factors of 28684971840

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 253

Divisors of 28684971840

• Number of divisors d(n): 896
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 19 20 21 24 28 29 30 32 35 38 40 42 48 56 57 58 60 61 64 70 76 80 84 87 95 96 105 112 114 116 120 122 127 133 140 145 152 160 168 174 183 190 192 203 210 224 228 232 240 244 254 266 280 285 290 304 305 320 336 348 366 380 381 399 406 420 427 435 448 456 464 480 488 508 532 551 560 570 580 608 609 610 635 665 672 696 732 760 762 798 812 840 854 870 889 912 915 928 960 976 1015 1016 1064 1102 1120 1140 1159 1160 1216 1218 1220 1270 1281 1330 1344 1392 1464 1520 1524 1596 1624 1653 1680 1708 1740 1769 1778 1824 1830 1856 1905 1952 1995 2030 2032 2128 2135 2204 2240 2280 2318 2320 2413 2436 2440 2540 2562 2660 2667 2755 2784 2928 3040 3045 3048 3192 3248 3306 3360 3416 3477 3480 3538 3556 3648 3660 3683 3810 3857 3904 3990 4060 4064 4256 4270 4408 4445 4560 4636 4640 4826 4872 4880 5080 5124 5307 5320 5334 5510 5568 5795 5856 6080 6090 6096 6384 6405 6496 6612 6720 6832 6954 6960 7076 7112 7239 7320 7366 7620 7714 7747 7980 8113 8120 8128 8265 8512 8540 8816 8845 8890 9120 9272 9280 9652 9744 9760 10160 10248 10614 10640 10668 11020 11049 11571 11590 11712 12065 12180 12192 12383 12768 12810 12992 13224 13335 13664 13908 13920 14152 14224 14478 14640 14732 15240 15428 15494 15960 16226 16240 16530 16891 17080 17385 17632 17690 17780 18240 18415 18544 19285 19304 19488 19520 20320 20496 21228 21280 21336 22040 22098 23142 23180 23241 24130 24339 24360 24384 24766 25536 25620 25781 26448 26535 26670 27328 27816 27840 28304 28448 28956 29280 29464 30480 30856 30988 31920 32452 32480 33060 33611 33782 34160 34770 35264 35380 35560 36195 36830 37088 37149 38570 38608 38735 38976 40565 40640 40992 42456 42560 42672 44080 44196 46284 46360 46482 48260 48678 48720 49532 50673 51240 51562 52896 53070 53340 54229 55245 55632 56608 56896 57855 57912 58560 58928 60960 61712 61915 61976 63840 64904 64960 66120 67222 67564 68320 69540 69977 70760 71120 72390 73660 74176 74298 77140 77216 77343 77470 81130 81984 84455 84912 85344 88160 88392 92568 92720 92964 96520 97356 97440 99064 100833 101346 102480 103124 105792 106140 106680 108458 110490 111264 113216 115710 115824 116205 117856 121695 121920 123424 123830 123952 127680 128905 129808 132240 134444 135128 136640 139080 139954 141520 142240 144780 147193 147320 148596 154280 154432 154686 154940 162260 162687 168055 168910 169824 170688 176320 176784 185136 185440 185745 185928 193040 194712 194880 198128 201666 202692 204960 206248 209931 212280 213360 216916 220980 222528 224663 231420 231648 232410 235277 235712 243390 246848 247660 247904 253365 257810 259616 264480 268888 270256 271145 278160 279908 283040 284480 289560 294386 294640 297192 308560 309372 309880 324520 325374 336110 337820 339648 349885 353568 370272 370880 371490 371856 386080 386715 389424 396256 403332 405384 409920 412496 419862 424560 426720 433832 441579 441960 449326 462840 463296 464820 470554 486780 489839 495320 495808 504165 506730 515620 519232 528960 537776 540512 542290 556320 559816 566080 579120 588772 589280 594384 617120 618744 619760 649040 650748 672220 673989 675640 699770 705831 707136 735965 740544 742980 743712 772160 773430 778848 792512 806664 810768 813435 824992 839724 849120 853440 867664 883158 883920 898652 925680 929640 941108 973560 979678 990640 1008330 1013460 1030351 1031240 1049655 1075552 1081024 1084580 1112640 1119632 1123315 1158240 1176385 1177544 1178560 1188768 1234240 1237488 1239520 1298080 1301496 1344440 1347978 1351280 1399540 1411662 1469517 1471930 1485960 1487424 1546860 1557696 1572641 1613328 1621536 1626870 1649984 1679448 1698240 1735328 1766316 1767840 1797304 1851360 1859280 1882216 1947120 1959356 1981280 2016660 2026920 2060702 2062480 2099310 2151104 2169160 2207895 2239264 2246630 2316480 2352770 2355088 2377536 2449195 2474976 2479040 2596160 2602992 2688880 2695956 2702560 2799080 2823324 2939034 2943860 2971920 3091053 3093720 3145282 3226656 3243072 3253740 3358896 3369945 3470656 3529155 3532632 3535680 3594608 3702720 3718560 3764432 3894240 3918712 3962560 4033320 4053840 4121404 4124960 4198620 4268597 4338320 4415790 4478528 4493260 4705540 4710176 4717923 4898390 4949952 5151755 5205984 5377760 5391912 5405120 5598160 5646648 5878068 5887720 5943840 6182106 6187440 6290564 6453312 6507480 6717792 6739890 7058310 7065264 7189216 7347585 7437120 7528864 7788480 7837424 7863205 8066640 8107680 8242808 8249920 8397240 8537194 8676640 8831580 8986520 9411080 9420352 9435846 9796780 10303510 10411968 10755520 10783824 11196320 11293296 11756136 11775440 11887680 12364212 12374880 12581128 12805791 13014960 13435584 13479780 14116620 14130528 14378432 14695170 15057728 15455265 15674848 15726410 16133280 16215360 16485616 16794480 17074388 17353280 17663160 17973040 18822160 18871692 19593560 20607020 21342985 21567648 22392640 22586592 23512272 23550880 23589615 24728424 24749760 25162256 25611582 26029920 26959560 28233240 28261056 29390340 29880179 30910530 31349696 31452820 32266560 32971232 33588960 34148776 35326320 35946080 37644320 37743384 39187120 41214040 42685970 43135296 45173184 47024544 47101760 47179230 49456848 50324512 51223164 52059840 53919120 56466480 58780680 59760358 61821060 62905640 64028955 65942464 67177920 68297552 70652640 71892160 75288640 75486768 78374240 82428080 85371940 89640537 94049088 94358460 98913696 100649024 102446328 107838240 112932960 117561360 119520716 123642120 125811280 128057910 136595104 141305280 149400895 150973536 156748480 164856160 170743880 179281074 188716920 197827392 204892656 215676480 225865920 235122720 239041432 247284240 251622560 256115820 273190208 298801790 301947072 329712320 341487760 358562148 377433840 409785312 448202685 470245440 478082864 494568480 503245120 512231640 597603580 682975520 717124296 754867680 819570624 896405370 956165728 989136960 1024463280 1195207160 1365951040 1434248592 1509735360 1792810740 1912331456 2048926560 2390414320 2868497184 3585621480 4097853120 4780828640 5736994368 7171242960 9561657280 14342485920 28684971840
• Sum of all divisors σ(n): 116106854400
• Sum of proper divisors (its aliquot sum) s(n): 87421882560
• 28684971840 is an abundant number, because the sum of its proper divisors (87421882560) is greater than itself. Its abundance is 58736910720

Bases of 28684971840

• Binary: 11010101101110000011110111101000000₂
• Hexadecimal: 0x6ADC1EF40
• Base-36: D6EAHXC

Squares and roots of 28684971840

• 28684971840 squared (28684971840²) is 822827609461592985600
• 28684971840 cubed (28684971840³) is 23602786806580312353477525504000
• The square root of 28684971840 is 169366.3834413429
• The cube root of 28684971840 is 3061.1513971979

Scales and comparisons

• 28,684,971,840 seconds is equal to 912 years, 4 weeks, 5 days, 23 hours, 44 minutes.
• To count from 1 to 28,684,971,840 would take you about one thousand, eight hundred twenty-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 28684971840 cubic inches would be around 255.1 feet tall.

Recreational maths with 28684971840

• 28684971840 backwards is 04817948682
• 28684971840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28684971840's digits is 57
• More coming soon!