18199981800

Names of 18199981800

• Cardinal: 18199981800 can be written as Eighteen billion, one hundred ninety-nine million, nine hundred eighty-one thousand, eight hundred.

Scientific notation

• Scientific notation: 1.81999818 × 10¹⁰

Factors of 18199981800

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 78

Divisors of 18199981800

• Number of divisors d(n): 1728
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 18 20 21 22 24 25 26 27 28 30 33 35 36 37 39 40 42 44 45 49 50 52 54 55 56 60 63 65 66 70 72 74 75 77 78 84 88 90 91 98 99 100 104 105 108 110 111 117 120 126 130 132 135 140 143 147 148 150 154 156 165 168 169 175 180 182 185 189 195 196 198 200 210 216 220 222 225 231 234 245 252 259 260 264 270 273 275 280 286 294 296 297 300 308 312 315 325 330 333 338 350 351 360 364 370 378 385 390 392 396 407 420 429 440 441 444 450 455 462 468 481 490 495 504 507 518 520 525 539 540 546 550 555 572 585 588 594 600 616 630 637 650 660 666 675 676 693 700 702 715 728 735 740 756 770 777 780 792 814 819 825 840 845 858 882 888 900 910 924 925 936 945 962 975 980 990 999 1001 1014 1036 1050 1078 1080 1092 1100 1110 1144 1155 1170 1176 1183 1188 1221 1225 1260 1274 1287 1295 1300 1320 1323 1332 1350 1352 1365 1386 1400 1404 1430 1443 1470 1480 1485 1512 1521 1540 1554 1560 1575 1617 1628 1638 1650 1665 1690 1716 1755 1764 1800 1813 1820 1848 1850 1859 1890 1911 1924 1925 1950 1960 1980 1998 2002 2028 2035 2072 2079 2100 2145 2156 2184 2200 2205 2220 2275 2310 2331 2340 2366 2376 2405 2442 2450 2457 2475 2520 2535 2548 2574 2590 2600 2646 2664 2695 2700 2730 2772 2775 2808 2849 2860 2886 2925 2940 2970 3003 3042 3080 3108 3150 3185 3234 3256 3276 3300 3330 3367 3380 3432 3465 3510 3528 3549 3575 3626 3640 3663 3675 3700 3718 3780 3822 3848 3850 3861 3885 3900 3960 3996 4004 4056 4070 4095 4158 4200 4225 4290 4312 4329 4410 4440 4550 4563 4620 4662 4680 4725 4732 4810 4851 4884 4900 4914 4950 4995 5005 5070 5096 5148 5180 5291 5292 5390 5400 5439 5460 5544 5550 5577 5698 5720 5733 5772 5775 5850 5880 5915 5940 6006 6084 6105 6216 6253 6300 6370 6435 6468 6475 6552 6600 6615 6660 6734 6760 6825 6930 6993 7007 7020 7098 7150 7215 7252 7326 7350 7400 7425 7436 7560 7605 7644 7700 7722 7770 7800 7992 8008 8085 8140 8190 8281 8316 8325 8450 8547 8580 8658 8775 8820 9009 9065 9100 9126 9240 9295 9324 9450 9464 9555 9620 9702 9768 9800 9828 9900 9990 10010 10101 10140 10175 10296 10360 10395 10582 10584 10647 10725 10780 10878 10920 10989 11025 11100 11154 11396 11466 11544 11550 11655 11700 11830 11880 12012 12025 12168 12210 12285 12506 12600 12675 12740 12870 12936 12950 12987 13013 13230 13320 13468 13475 13650 13860 13986 14014 14040 14196 14245 14300 14430 14504 14553 14652 14700 14850 14872 15015 15210 15288 15400 15444 15540 15873 15925 16170 16280 16317 16380 16562 16632 16650 16731 16835 16900 17094 17160 17199 17316 17325 17550 17640 17745 18018 18130 18200 18252 18315 18590 18648 18759 18900 19110 19240 19305 19404 19425 19656 19800 19943 19980 20020 20202 20280 20350 20475 20790 21021 21164 21294 21450 21560 21645 21756 21978 22050 22200 22308 22792 22815 22932 23100 23310 23400 23569 23660 24024 24050 24255 24420 24570 24843 24975 25012 25025 25350 25480 25641 25740 25900 25974 26026 26455 26460 26936 26950 27027 27195 27300 27720 27885 27972 28028 28392 28490 28600 28665 28860 29106 29304 29400 29575 29700 30030 30303 30420 30525 30888 31080 31265 31746 31850 31941 32175 32340 32634 32760 33075 33124 33300 33462 33670 33800 34188 34398 34632 34650 34965 35035 35100 35490 36036 36075 36260 36504 36630 37037 37180 37518 37800 38025 38220 38610 38808 38850 39039 39886 39960 40040 40404 40425 40700 40950 41405 41580 42042 42328 42588 42735 42900 43290 43512 43771 43956 44100 44616 45045 45325 45630 45864 46200 46475 46620 47138 47320 47619 47775 48100 48510 48840 48951 49140 49686 49950 50024 50050 50193 50505 50700 51282 51480 51800 51948 51975 52052 52910 52920 53235 53900 54054 54390 54600 54945 55770 55944 56056 56277 56980 57330 57720 58212 58275 59150 59400 59829 60060 60606 60840 61050 61425 62530 63063 63492 63700 63882 64350 64680 64935 65065 65268 66150 66248 66600 66924 67340 68376 68783 68796 69300 69930 70070 70200 70707 70980 71225 72072 72150 72520 72765 73260 74074 74360 74529 75036 75075 76050 76440 76923 77220 77700 78078 79365 79772 80808 80850 81400 81585 81900 82810 83160 83655 84084 84175 85176 85470 85800 85995 86580 87542 87912 88200 88725 90090 90650 90909 91091 91260 91575 92950 93240 93795 94276 95238 95550 96200 96525 97020 97902 98280 99372 99715 99900 100100 100386 101010 101400 102564 103896 103950 104104 105105 105820 106470 107800 108108 108225 108780 109890 111111 111540 112554 113960 114075 114660 116424 116550 117117 117845 118300 119658 120120 121212 121275 122100 122850 124215 125060 126126 126984 127400 127764 128205 128700 129870 130130 130536 131313 132275 132300 133848 134680 135135 135975 137566 137592 138600 139425 139860 140140 141414 141960 142450 142857 143325 144300 145530 146520 148148 149058 150072 150150 151515 152100 153846 154440 155400 156156 156325 158730 159544 159705 161700 163170 163800 165620 167310 168168 168350 168831 170940 171990 173160 174825 175084 175175 177450 179487 180180 181300 181818 182182 182520 183150 185185 185900 187590 188552 189189 190476 191100 193050 194040 195195 195804 198744 199430 199800 200200 200772 202020 205128 206349 207025 207900 210210 211640 212121 212940 213675 216216 216450 217560 218855 219780 222222 223080 223587 225108 225225 228150 229320 233100 234234 235690 236600 238095 239316 242424 242550 244200 244755 245700 248430 250120 250965 252252 252525 255528 256410 257400 259259 259740 260260 262626 264550 264600 266175 270270 271950 273273 274725 275132 278850 279720 280280 281385 282828 284900 285714 286650 288600 291060 296296 298116 299145 300300 303030 304200 306397 307692 312312 312650 315315 317460 319410 323400 324675 325325 326340 331240 333333 334620 336700 337662 341880 343915 343980 349650 350168 350350 351351 353535 354900 358974 360360 362600 363636 363825 364364 366300 370370 371800 372645 375180 378378 380952 382200 384615 386100 390390 391608 393939 396825 398860 401544 404040 407925 412698 414050 415800 418275 420420 424242 425880 427350 429975 432900 437710 439560 444444 447174 450216 450450 454545 455455 456300 466200 468468 468975 471380 476190 478632 481481 485100 489510 491400 496860 498575 501930 504504 505050 512820 518518 519480 520520 525252 525525 529100 532350 538461 540540 543900 546546 549450 550264 555555 557700 562770 565656 569800 571428 573300 582120 585585 589225 596232 598290 600600 606060 612794 615384 619047 621075 625300 630630 634920 636363 638820 641025 649350 650650 652680 656565 666666 669240 673400 675324 675675 687830 687960 699300 700700 702702 707070 709800 714285 717948 727272 727650 728728 732600 740740 745290 750360 756756 757575 769230 772200 777777 780780 787878 793650 797720 798525 815850 819819 825396 828100 836550 840840 844155 848484 854700 859950 865800 875420 888888 894348 897435 900900 909090 910910 912600 919191 925925 936936 937950 942760 945945 952380 962962 970200 975975 979020 993720 997150 999999 1003860 1010100 1025640 1031745 1037036 1050504 1051050 1058200 1060605 1064700 1076922 1081080 1087800 1093092 1094275 1098900 1111110 1115400 1117935 1125540 1142856 1146600 1171170 1178450 1181817 1190475 1196580 1212120 1223775 1225588 1238094 1242150 1250600 1254825 1261260 1272726 1277640 1282050 1296295 1298700 1301300 1313130 1333332 1350648 1351350 1366365 1375660 1398600 1401400 1405404 1406925 1414140 1428570 1435896 1444443 1455300 1481480 1490580 1495725 1513512 1515150 1531985 1538460 1555554 1561560 1575756 1576575 1587300 1597050 1631700 1639638 1650792 1656200 1666665 1673100 1688310 1696968 1709400 1719575 1719900 1750840 1756755 1767675 1788696 1794870 1801800 1818180 1821820 1838382 1851850 1857141 1863225 1875900 1891890 1904760 1923075 1925924 1951950 1958040 1969695 1994300 1999998 2007720 2020200 2063490 2074072 2102100 2121210 2129400 2153844 2186184 2188550 2197800 2222220 2235870 2251080 2272725 2277275 2333331 2342340 2356900 2363634 2380950 2393160 2407405 2447550 2451176 2459457 2476188 2484300 2509650 2522520 2545452 2564100 2592590 2597400 2602600 2626260 2666664 2692305 2702700 2732730 2751320 2757573 2777775 2810808 2813850 2828280 2857140 2888886 2910600 2927925 2981160 2991450 3030300 3063970 3076920 3095235 3111108 3151512 3153150 3174600 3181815 3194100 3263400 3279276 3282825 3333330 3346200 3370367 3376620 3439150 3439800 3513510 3535350 3571425 3589740 3636360 3643640 3676764 3703700 3714282 3726450 3751800 3783780 3846150 3851848 3888885 3903900 3939390 3988600 3999996 4099095 4126980 4204200 4220775 4242420 4307688 4333329 4377100 4444440 4471740 4487175 4545450 4554550 4595955 4666662 4684680 4713800 4727268 4729725 4761900 4814810 4895100 4918914 4952376 4968600 4999995 5019300 5090904 5128200 5158725 5185180 5252520 5303025 5384610 5405400 5465460 5515146 5555550 5589675 5627700 5714280 5777772 5855850 5909085 5982900 6060600 6127940 6190470 6222216 6306300 6363630 6388200 6481475 6558552 6565650 6666660 6740734 6753240 6831825 6878300 6999993 7027020 7070700 7142850 7179480 7222215 7353528 7407400 7428564 7452900 7567560 7659925 7692300 7777770 7807800 7878780 7999992 8198190 8253960 8272719 8333325 8441550 8484840 8666658 8754200 8783775 8943480 8974350 9090900 9109100 9191910 9285705 9333324 9454536 9459450 9523800 9629620 9790200 9837828 9848475 9999990 10038600 10111101 10317450 10370360 10606050 10769220 10930920 11030292 11111100 11179350 11255400 11555544 11666655 11711700 11818170 11965800 12037025 12255880 12297285 12380940 12612600 12727260 12962950 12999987 13131300 13333320 13461525 13481468 13663650 13756600 13787865 13999986 14054040 14141400 14285700 14444430 14857128 14905800 15319850 15384600 15476175 15555540 15757560 15909075 16396380 16545438 16666650 16851835 16883100 17333316 17567550 17948700 18181800 18218200 18383820 18571410 18666648 18918900 19259240 19444425 19675656 19696950 19999980 20222202 20495475 20634900 21212100 21538440 21666645 22060584 22222200 22358700 22979775 23333310 23423400 23636340 24074050 24594570 24761880 24999975 25454520 25925900 25999974 26262600 26923050 26962936 27327300 27575730 27999972 28571400 28888860 29545425 30333303 30639700 30952350 31111080 31818150 32792760 33090876 33333300 33703670 33766200 34666632 34999965 35135100 35897400 36111075 36767640 37142820 37837800 38888850 39393900 39999960 40444404 40990950 41269800 41363595 42424200 43333290 44717400 45959550 46428525 46666620 47272680 48148100 49189140 49999950 50555505 51851800 51999948 53846100 54654600 55151460 55999944 57777720 58333275 59090850 60666606 61279400 61486425 61904700 63636300 64999935 66181752 66666600 67407340 68939325 69999930 70270200 72222150 74285640 77777700 78787800 80888808 81981900 82727190 84259175 86666580 90999909 91919100 92857050 93333240 96296200 98378280 99999900 101111010 103999896 107692200 108333225 110302920 116666550 118181700 121333212 122972850 123809400 127272600 129999870 134814680 137878650 139999860 144444300 151666515 155555400 163963800 165454380 168518350 173333160 174999825 181999818 183838200 185714100 199999800 202222020 206817975 216666450 233333100 236363400 242666424 245945700 252777525 259999740 275757300 279999720 288888600 303333030 324999675 330908760 337036700 349999650 363999636 371428200 404444040 413635950 433332900 454999545 466666200 491891400 505555050 519999480 551514600 606666060 649999350 674073400 699999300 727999272 758332575 827271900 866665800 909999090 1011110100 1213332120 1299998700 1399998600 1516665150 1654543800 1819998180 2022220200 2274997725 2599997400 3033330300 3639996360 4549995450 6066660600 9099990900 18199981800
• Sum of all divisors σ(n): 88471569600
• Sum of proper divisors (its aliquot sum) s(n): 70271587800
• 18199981800 is an abundant number, because the sum of its proper divisors (70271587800) is greater than itself. Its abundance is 52071606000

Bases of 18199981800

• Binary: 10000111100110011011010111011101000₂
• Hexadecimal: 0x43CCDAEE8
• Base-36: 8CZSRU0

Squares and roots of 18199981800

• 18199981800 squared (18199981800²) is 331239337520331240000
• 18199981800 cubed (18199981800³) is 6028549914314085697971432000000
• The square root of 18199981800 is 134907.3081786157
• The cube root of 18199981800 is 2630.4112374813

Scales and comparisons

• 18,199,981,800 seconds is equal to 578 years, 36 weeks, 3 days, 22 hours, 30 minutes.
• To count from 1 to 18,199,981,800 would take you about one thousand, one hundred fifty-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 18199981800 cubic inches would be around 219.2 feet tall.

Recreational maths with 18199981800

• 18199981800 backwards is 00818999181
• 18199981800 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18199981800's digits is 54
• More coming soon!