1998178722540

Names of 1998178722540

• Cardinal: 1998178722540 can be written as One trillion, nine hundred ninety-eight billion, one hundred seventy-eight million, seven hundred twenty-two thousand, five hundred forty.

Scientific notation

• Scientific notation: 1.99817872254 × 10¹²

Factors of 1998178722540

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3575

Divisors of 1998178722540

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 11 12 13 14 15 18 20 21 22 26 28 30 33 35 36 39 42 44 45 52 55 60 63 65 66 70 77 78 84 90 91 99 105 110 117 121 126 130 132 140 143 154 156 165 180 182 195 198 210 220 231 234 242 252 260 273 286 308 313 315 330 363 364 385 390 396 420 429 455 462 468 484 495 546 572 585 605 626 630 660 693 715 726 770 780 819 847 858 910 924 939 990 1001 1089 1092 1155 1170 1210 1252 1260 1287 1365 1386 1430 1452 1540 1565 1573 1638 1694 1716 1815 1820 1878 1980 2002 2145 2178 2191 2310 2340 2420 2541 2574 2730 2772 2817 2860 3003 3130 3146 3221 3276 3388 3443 3465 3630 3756 4004 4069 4095 4235 4290 4356 4382 4620 4695 4719 5005 5082 5148 5445 5460 5634 6006 6260 6292 6435 6442 6573 6886 6930 7260 7623 7865 8138 8190 8470 8580 8764 9009 9390 9438 9663 10010 10164 10329 10890 10955 11011 11268 12012 12207 12705 12870 12884 13146 13772 13860 14085 14157 15015 15246 15730 16105 16276 16380 16940 17215 18018 18780 18876 19326 19719 20020 20345 20658 21780 21910 22022 22547 23595 24101 24414 25410 25740 26292 28170 28314 28483 28989 30030 30492 30987 31460 32210 32865 33033 34430 35431 36036 36621 37873 38115 38652 39438 40690 41316 41873 43820 44044 44759 45045 45094 47190 48202 48315 48828 50820 51645 55055 56340 56628 56966 57978 60060 61035 61974 64420 65730 66066 67641 68860 70785 70862 72303 73242 75746 76230 78876 81380 83746 85449 89518 90090 90188 94380 96404 96630 98595 99099 103290 106293 110110 112735 113619 113932 115956 120505 122070 123948 125619 131460 132132 134277 135282 141570 141724 142415 144606 144945 146484 151492 152460 154935 165165 167492 170898 177155 179036 180180 183105 189365 193260 197190 198198 202923 206580 209365 212586 216909 220220 223795 225470 227238 241010 244140 248017 251238 256347 265111 268554 270564 283140 284830 289212 289890 293111 309870 313313 318879 330330 338205 340857 341796 354310 361515 366210 376857 378730 389741 394380 396396 402831 405846 418730 425172 427245 433818 447590 450940 454476 460603 482020 492349 495495 496034 502476 512694 530222 531465 537108 568095 569660 579780 586222 619740 626626 628095 637758 660660 671385 676410 681714 708620 723030 732420 744051 753714 757460 779482 795333 805662 811692 837460 854490 867636 879333 895180 921206 939939 984698 990990 992068 1008173 1014615 1025388 1060444 1062930 1084545 1136190 1169223 1172444 1240085 1253252 1256190 1275516 1281735 1325555 1342770 1352820 1363428 1381809 1446060 1465555 1477047 1488102 1507428 1558964 1566565 1590666 1594395 1611324 1704285 1708980 1758666 1842412 1879878 1884285 1948705 1969396 1981980 2014155 2016346 2029230 2125860 2169090 2232153 2272380 2303015 2338446 2385999 2461745 2480170 2512380 2563470 2637999 2651110 2685540 2728187 2763618 2819817 2931110 2954094 2976204 3024519 3133130 3181332 3188790 3224221 3408570 3446443 3507669 3517332 3720255 3759756 3768570 3897410 3976665 4028310 4032692 4058460 4145427 4338180 4396665 4431141 4464306 4606030 4676892 4699695 4771998 4923490 4960340 5040865 5066633 5126940 5275998 5302220 5456374 5527236 5639634 5846115 5862220 5908188 6049038 6266260 6377580 6448442 6817140 6892886 6909045 7015338 7057211 7385235 7440510 7537140 7794820 7953330 8056620 8184561 8290854 8793330 8862282 8928612 9073557 9212060 9399390 9543996 9672663 9846980 10081730 10133266 10339329 10551996 10912748 11089903 11160765 11279268 11692230 11929995 12098076 12896884 13106249 13189995 13640935 13785772 13818090 14030676 14099085 14114422 14770470 14881020 15122595 15199899 15906660 16121105 16369122 16581708 17232215 17538345 17586660 17724564 18147114 18798780 19345326 20163460 20266532 20678658 20727135 21171633 22155705 22179806 22321530 23384460 23859990 24553683 25333165 26212498 26379990 27281870 27636180 28198170 28228844 29017989 29540940 30245190 30399798 31017987 32242210 32738244 33269709 34464430 35076690 35286055 35466431 36294228 38690652 39318747 40922805 41357316 41454270 42343266 44311410 44359612 44643060 45367785 45599697 47719980 48363315 49107366 50666330 51696645 52424996 52759980 54563740 55449515 56396340 58035978 60490380 60799596 62035974 63514899 64484420 65531245 66539418 68928860 70153380 70572110 70932862 75999495 77629321 78637494 81845610 82908540 84686532 88622820 90735570 91199394 91743743 96726630 98214732 99809127 101332660 103393290 105858165 106399293 110899030 116071956 117956241 121988933 122768415 124071948 127029798 131062490 133078836 141144220 141865724 144168739 145089945 151998990 155089935 155258642 157274988 163691220 166348545 177332155 181471140 182398788 183487486 193453260 196593735 199618254 206786580 211716330 212798586 221798060 227998485 232887963 235912482 243977866 245536830 254059596 262124980 275231229 288337478 290179890 303997980 310179870 310517284 317574495 319197879 332697090 354664310 365966799 366974972 388146605 393187470 399236508 423432660 425597172 432506217 455996970 458718715 465775926 471824964 487955732 491073660 499045635 531996465 550462458 576674956 580359780 589781205 609944665 620359740 635148990 638395758 665394180 698663889 709328620 720843695 731933598 776293210 786374940 825693687 853922531 865012434 911993940 917437430 931551852 998091270 1009181173 1063992930 1097900397 1100924916 1164439815 1179562410 1219889330 1270297980 1276791516 1297518651 1376156145 1397327778 1441687390 1463867196 1552586420 1585856129 1595989395 1651387374 1707845062 1730024868 1829833995 1834874860 1996182540 2018362346 2127985860 2162531085 2195800794 2328879630 2359124820 2439778660 2561767593 2595037302 2752312290 2794655556 2883374780 3027543519 3171712258 3191978790 3302774748 3415690124 3493319445 3659667990 4036724692 4128468435 4269612655 4325062170 4391601588 4657759260 4757568387 5045905865 5123535186 5190074604 5489501985 5504624580 6055087038 6343424516 6383957580 6487593255 6986638890 7319335980 7685302779 7929280645 8256936870 8539225310 8650124340 9082630557 9515136774 10091811730 10247070372 10979003970 11100992903 12110174076 12808837965 12975186510 13973277780 14272705161 15137717595 15370605558 15858561290 16513873740 17078450620 18165261114 19030273548 20183623460 21958007940 22201985806 23787841935 25617675930 25950373020 28545410322 30275435190 30741211116 31717122580 33302978709 36330522228 38426513895 44403971612 45413152785 47575683870 51235351860 55504964515 57090820644 60550870380 66605957418 71363525805 76853027790 90826305570 95151367740 99908936127 111009929030 133211914836 142727051610 153706055580 166514893545 181652611140 199817872254 222019858060 285454103220 333029787090 399635744508 499544680635 666059574180 999089361270 1998178722540
• Sum of all divisors σ(n): 8228439692928
• Sum of proper divisors (its aliquot sum) s(n): 6230260970388
• 1998178722540 is an abundant number, because the sum of its proper divisors (6230260970388) is greater than itself. Its abundance is 4232082247848

Bases of 1998178722540

• Binary: 11101000100111100101110111010001011101100₂
• Hexadecimal: 0x1D13CBBA2EC
• Base-36: PHY80PV0

Squares and roots of 1998178722540

• 1998178722540 squared (1998178722540²) is 3992718207211586304051600
• 1998178722540 cubed (1998178722540³) is 7978164566748246536516786114243064000
• The square root of 1998178722540 is 1413569.4968907615
• The cube root of 1998178722540 is 12595.3848944499

Scales and comparisons

• 1,998,178,722,540 seconds is equal to 63,535 years, 46 weeks, 6 days, 13 hours, 9 minutes.
• To count from 1 to 1,998,178,722,540 would take you about one hundred fifty-eight thousand, eight hundred thirty-nine 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 1998178722540 cubic inches would be around 1049.6 feet tall.

Recreational maths with 1998178722540

• 1998178722540 backwards is 0452278718991
• 1998178722540 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1998178722540's digits is 63
• More coming soon!