18989738820

Names of 18989738820

• Cardinal: 18989738820 can be written as Eighteen billion, nine hundred eighty-nine million, seven hundred thirty-eight thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 1.898973882 × 10¹⁰

Factors of 18989738820

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 159

Divisors of 18989738820

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 17 18 20 26 27 29 30 31 34 36 39 45 51 52 54 58 59 60 62 65 68 78 81 85 87 90 93 102 108 116 117 118 124 130 135 145 153 155 156 162 170 174 177 180 186 195 204 221 234 236 255 260 261 270 279 290 295 306 310 324 340 348 351 354 372 377 390 403 405 435 442 459 465 468 493 510 522 527 531 540 558 580 585 590 612 620 663 702 708 754 765 767 780 783 806 810 837 870 884 885 899 918 930 986 1003 1020 1044 1053 1054 1062 1105 1116 1131 1170 1180 1209 1305 1326 1377 1395 1404 1479 1508 1530 1534 1566 1581 1593 1612 1620 1674 1711 1740 1755 1770 1798 1829 1836 1860 1885 1972 1989 2006 2015 2106 2108 2124 2210 2262 2295 2301 2340 2349 2418 2465 2511 2610 2635 2652 2655 2697 2754 2790 2958 3009 3060 3068 3132 3162 3186 3315 3348 3393 3422 3510 3540 3596 3627 3658 3770 3835 3915 3978 4012 4030 4185 4212 4420 4437 4495 4524 4590 4602 4698 4743 4779 4836 4930 5015 5022 5133 5220 5265 5270 5310 5394 5487 5508 5580 5655 5916 5967 6018 6045 6324 6372 6409 6630 6786 6844 6851 6885 6903 7020 7254 7316 7395 7540 7670 7830 7905 7956 7965 8060 8091 8370 8555 8874 8990 9027 9145 9180 9204 9396 9486 9558 9860 9945 10030 10044 10179 10266 10530 10540 10620 10788 10881 10974 11310 11505 11687 11745 11934 12036 12090 12555 12818 13039 13260 13311 13485 13572 13702 13770 13806 14229 14508 14790 15045 15283 15340 15399 15660 15810 15930 16182 16461 16740 16965 17110 17748 17901 17980 18054 18135 18290 18972 19116 19227 19890 20060 20358 20532 20553 20709 21060 21762 21948 22185 22243 22620 23010 23374 23490 23715 23777 23868 23895 24180 24273 25110 25636 25665 26078 26622 26970 27081 27404 27435 27540 27612 28458 29087 29580 29835 30090 30537 30566 30798 31093 31620 31860 32045 32364 32643 32922 33930 34220 34255 34515 35061 35802 36108 36270 36580 38454 39117 39780 39933 40455 40716 41106 41418 42687 43524 44370 44486 45135 45849 46020 46197 46748 46980 47430 47554 47790 48546 49383 50220 50895 51330 52156 53041 53244 53940 54162 54405 54870 56916 57681 58174 58435 59670 60180 61074 61132 61596 61659 62127 62186 64090 65195 65286 65844 66555 66729 67860 68510 69030 70122 71145 71331 71604 72540 72819 76415 76908 76995 78234 79866 80910 81243 82212 82305 82836 85374 87261 88740 88972 89505 90270 91698 92394 93279 94860 95108 95580 96135 97092 98766 101790 102660 102765 103545 105183 106082 108324 108810 109740 111215 115362 116348 116870 117351 118885 119340 121365 122148 123318 124254 124372 128180 130390 130572 133110 133458 135405 137020 137547 138060 138591 140244 142290 142662 145435 145638 148149 152685 152830 153990 155465 156468 159123 159732 161820 162486 163215 164610 170748 173043 174522 175305 179010 180540 183396 184788 184977 186558 192270 195585 197532 198679 199665 200187 203580 205530 207090 210366 212164 213435 213993 217620 222430 229245 230724 230985 233740 234702 237770 242730 246636 246915 248508 260780 261783 265205 266220 266916 270810 275094 277182 279837 284580 285324 288405 290870 291276 296298 305370 305660 307980 308295 310635 310930 315549 318246 324972 326430 329220 333645 346086 349044 350610 352053 356655 358020 364095 369954 373116 378131 384540 391170 397358 399330 400374 404209 406215 411060 412641 414180 420732 426870 427986 436305 444860 458490 461970 466395 469404 475540 477369 485460 493830 519129 523566 525915 530410 541620 550188 554364 554931 559674 576810 581740 586755 592596 596037 600561 610740 616590 621270 621860 631098 636492 641979 652860 667290 687735 689533 692172 692955 701220 704106 713310 728190 739908 740745 756262 782340 785349 794716 795615 798660 800748 808418 812430 825282 839511 853740 855972 865215 872610 901697 916980 923940 924885 932790 946647 954738 987660 993395 1000935 1038258 1047132 1051830 1056159 1060820 1069965 1109862 1119348 1134393 1153620 1173510 1192074 1201122 1212627 1233180 1237923 1242540 1262196 1283958 1308915 1334580 1375470 1379066 1385910 1399185 1408212 1426620 1432107 1456380 1481490 1512524 1570698 1577745 1591230 1616836 1624860 1650564 1679022 1730430 1745220 1760265 1788111 1801683 1803394 1849770 1865580 1890655 1893294 1909476 1925937 1986790 2001870 2021045 2063205 2068599 2076516 2103660 2112318 2139930 2219724 2268786 2347020 2356047 2384148 2386845 2402244 2425254 2475846 2518533 2567916 2595645 2617830 2705091 2750940 2758132 2771820 2774655 2798370 2864214 2962980 2980185 3002805 3141396 3155490 3182460 3209895 3358044 3403179 3447665 3460860 3520530 3576222 3603366 3606788 3637881 3699540 3781310 3786588 3851874 3926745 3973580 4003740 4042090 4126410 4137198 4197555 4224636 4279860 4296321 4508485 4537572 4712094 4733235 4773690 4850508 4951692 5037066 5191290 5235660 5280795 5364333 5410182 5549310 5596740 5671965 5728428 5960370 6005610 6063135 6189615 6205797 6310980 6419790 6806358 6895330 7041060 7152444 7160535 7206732 7275762 7562620 7703748 7853490 8084180 8115273 8252820 8274396 8395110 8592642 8940555 9008415 9016970 9424188 9466470 9547380 9629685 10074132 10209537 10342995 10382580 10561590 10728666 10820364 10913643 11098620 11343930 11722061 11780235 11920740 12011220 12126270 12379230 12411594 12592665 12839580 13525455 13612716 13790660 14321070 14551524 15706980 16092999 16230546 16790220 17015895 17185284 17881110 18016830 18033940 18189405 18617391 18932940 19259370 20419074 20685990 21123180 21457332 21481605 21827286 22687860 23444122 23560470 24252540 24345819 24758460 24823188 25185330 26821665 27050910 28642140 30628611 31028985 32185998 32461092 32740929 34031790 35166183 35762220 36033660 36378810 37234782 38518740 40576365 40838148 41371980 42963210 43654572 46888244 47120940 48691638 50370660 51047685 53643330 54101820 54568215 55852173 58610305 61257222 62057970 64371996 65481858 68063580 70332366 72757620 73037457 74469564 80464995 81152730 85926420 93086955 97383276 102095370 105498549 107286660 109136430 111704346 117220610 121729095 122514444 124115940 130963716 140664732 146074914 153143055 160929990 162305460 163704645 175830915 186173910 204190740 210997098 218272860 223408692 234441220 243458190 279260865 292149828 306286110 316495647 321859980 327409290 351661830 365187285 372347820 421994196 486916380 527492745 558521730 612572220 632991294 654818580 703323660 730374570 949486941 1054985490 1117043460 1265982588 1460749140 1582478235 1898973882 2109970980 3164956470 3797947764 4747434705 6329912940 9494869410 18989738820
• Sum of all divisors σ(n): 73766246400
• Sum of proper divisors (its aliquot sum) s(n): 54776507580
• 18989738820 is an abundant number, because the sum of its proper divisors (54776507580) is greater than itself. Its abundance is 35786768760

Bases of 18989738820

• Binary: 10001101011111000000110101101000100₂
• Hexadecimal: 0x46BE06B44
• Base-36: 8Q20090

Squares and roots of 18989738820

• 18989738820 squared (18989738820²) is 360610180451814992400
• 18989738820 cubed (18989738820³) is 6847893142613036300636284968000
• The square root of 18989738820 is 137803.2612821625
• The cube root of 18989738820 is 2667.9211946825

Scales and comparisons

• 18,989,738,820 seconds is equal to 603 years, 42 weeks, 2 days, 15 hours, 27 minutes.
• To count from 1 to 18,989,738,820 would take you about one thousand, two hundred seven 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 18989738820 cubic inches would be around 222.3 feet tall.

Recreational maths with 18989738820

• 18989738820 backwards is 02883798981
• The number of decimal digits it has is: 11
• The sum of 18989738820's digits is 63
• More coming soon!