18989989200

Names of 18989989200

• Cardinal: 18989989200 can be written as Eighteen billion, nine hundred eighty-nine million, nine hundred eighty-nine thousand, two hundred.

Scientific notation

• Scientific notation: 1.89899892 × 10¹⁰

Factors of 18989989200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 30

Divisors of 18989989200

• Number of divisors d(n): 900
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 25 26 28 30 35 36 39 40 42 45 48 49 50 52 56 60 63 65 70 72 75 78 80 84 90 91 98 100 104 105 112 117 120 126 130 140 144 147 150 156 168 169 175 180 182 195 196 200 208 210 225 234 240 245 252 260 273 280 294 300 312 315 325 336 338 343 350 360 364 390 392 400 420 441 450 455 468 490 504 507 520 525 546 560 585 588 600 624 630 637 650 676 686 700 720 728 735 780 784 819 840 845 882 900 910 936 975 980 1008 1014 1029 1040 1050 1092 1170 1176 1183 1200 1225 1260 1274 1300 1352 1365 1372 1400 1456 1470 1521 1560 1575 1638 1680 1690 1715 1764 1800 1820 1872 1911 1950 1960 2028 2058 2100 2184 2197 2205 2275 2340 2352 2366 2401 2450 2520 2535 2548 2600 2704 2730 2744 2800 2925 2940 3042 3087 3120 3150 3185 3276 3380 3430 3528 3549 3600 3640 3675 3822 3900 3920 4056 4095 4116 4200 4225 4368 4394 4410 4459 4550 4680 4732 4802 4900 5040 5070 5096 5145 5200 5460 5488 5733 5850 5880 5915 6084 6174 6300 6370 6552 6591 6760 6825 6860 7056 7098 7203 7280 7350 7605 7644 7800 8112 8190 8232 8281 8400 8450 8575 8788 8820 8918 9100 9360 9464 9555 9604 9800 10140 10192 10290 10647 10920 10985 11025 11466 11700 11760 11830 12005 12168 12348 12600 12675 12740 13104 13182 13377 13520 13650 13720 14196 14406 14700 15210 15288 15379 15435 15600 15925 16380 16464 16562 16900 17150 17576 17640 17745 17836 18200 18928 19110 19208 19600 19773 20280 20475 20580 21294 21609 21840 21970 22050 22295 22932 23400 23660 24010 24336 24696 24843 25200 25350 25480 25725 26364 26754 27300 27440 28392 28665 28812 29400 29575 30420 30576 30758 30870 31213 31850 32760 32955 33124 33800 34300 35152 35280 35490 35672 36015 36400 38025 38220 38416 39546 40131 40560 40950 41160 41405 42588 43218 43940 44100 44590 45864 46137 46800 47320 47775 48020 49392 49686 50700 50960 51450 52728 53235 53508 54600 54925 56784 57330 57624 57967 58800 59150 60025 60840 61516 61740 62426 63700 65520 65910 66248 66885 67600 68600 70980 71344 72030 74529 76050 76440 76895 77175 79092 80262 81900 82320 82810 85176 86436 87880 88200 88725 89180 91728 92274 93639 94640 95550 96040 98865 99372 101400 102900 105456 106470 107016 107653 108045 109200 109850 111475 114660 115248 115934 118300 120050 121680 123032 123480 124215 124852 127400 131820 132496 133770 137200 138411 141960 143325 144060 149058 152100 152880 153790 154350 156065 158184 160524 163800 164775 165620 170352 172872 173901 175760 176400 177450 178360 180075 184548 187278 191100 192080 197730 198744 200655 202800 205800 207025 212940 214032 215306 216090 219700 222950 229320 230685 231868 236600 240100 246064 246960 248430 249704 254800 263640 266175 267540 276822 280917 283920 286650 288120 289835 298116 304200 307580 308700 312130 316368 321048 322959 327600 329550 331240 334425 345744 347802 354900 356720 360150 369096 372645 374556 382200 384475 395460 397488 401310 405769 411600 414050 425880 430612 432180 439400 445900 458640 461370 463736 468195 473200 480200 494325 496860 499408 521703 527280 532350 535080 538265 540225 553644 561834 573300 576240 579670 596232 608400 615160 617400 621075 624260 642096 645918 659100 662480 668850 692055 695604 709800 720300 738192 745290 749112 753571 764400 768950 780325 790920 802620 811538 828100 851760 861224 864360 869505 878800 891800 922740 927472 936390 960400 968877 988650 993720 1003275 1043406 1064700 1070160 1076530 1080450 1107288 1123668 1146600 1153425 1159340 1192464 1217307 1230320 1234800 1242150 1248520 1291836 1318200 1337700 1384110 1391208 1404585 1419600 1440600 1449175 1490580 1498224 1507142 1537900 1560650 1581840 1605240 1614795 1623076 1656200 1722448 1728720 1739010 1783600 1845480 1863225 1872780 1937754 1977300 1987440 2006550 2028845 2086812 2129400 2153060 2160900 2214576 2247336 2260713 2293200 2306850 2318680 2340975 2434614 2484300 2497040 2583672 2608515 2636400 2675400 2691325 2768220 2782416 2809170 2881200 2898350 2981160 3014284 3075800 3121300 3210480 3229590 3246152 3312400 3460275 3478020 3651921 3690960 3726450 3745560 3767855 3875508 3954600 4013100 4057690 4173624 4258800 4306120 4321800 4347525 4494672 4521426 4613700 4637360 4681950 4844385 4869228 4968600 5167344 5217030 5274997 5350800 5382650 5536440 5618340 5796700 5962320 6028568 6086535 6151600 6242600 6459180 6492304 6782139 6920550 6956040 7022925 7303842 7452900 7491120 7535710 7751016 7909200 8026200 8073975 8115380 8347248 8612240 8643600 8695050 9042852 9227400 9363900 9688770 9738456 9937200 10144225 10434060 10549994 10765300 11072880 11236680 11303565 11593400 12057136 12173070 12485200 12918360 13042575 13564278 13841100 13912080 14045850 14607684 14905800 15071420 15502032 15824991 16052400 16147950 16230760 17390100 18085704 18259605 18454800 18727800 18839275 19377540 19476912 20288450 20868120 21099988 21530600 22473360 22607130 23186800 24221925 24346140 25836720 26085150 26374985 27128556 27682200 28091700 29215368 29811600 30142840 30432675 31649982 32295900 32461520 33910695 34780200 36171408 36519210 37455600 37678550 38755080 40576900 41736240 42199976 43061200 45214260 47474973 48443850 48692280 52170300 52749970 54257112 55364400 56183400 56517825 58430736 60285680 60865350 63299964 64591800 67821390 69560400 73038420 75357100 77510160 79124955 81153800 84399952 90428520 91298025 94949946 96887700 97384560 104340600 105499940 108514224 112366800 113035650 121730700 126599928 129183600 131874925 135642780 146076840 150714200 158249910 162307600 169553475 180857040 182596050 189899892 193775400 208681200 210999880 226071300 237374865 243461400 253199856 263749850 271285560 292153680 301428400 316499820 339106950 365192100 379799784 387550800 395624775 421999760 452142600 474749730 486922800 527499700 542571120 632999640 678213900 730384200 759599568 791249550 904285200 949499460 1054999400 1186874325 1265999280 1356427800 1460768400 1582499100 1898998920 2109998800 2373748650 2712855600 3164998200 3797997840 4747497300 6329996400 9494994600 18989989200
• Sum of all divisors σ(n): 83283085340
• Sum of proper divisors (its aliquot sum) s(n): 64293096140
• 18989989200 is an abundant number, because the sum of its proper divisors (64293096140) is greater than itself. Its abundance is 45303106940

Bases of 18989989200

• Binary: 10001101011111001000011110101010000₂
• Hexadecimal: 0x46BE43D50
• Base-36: 8Q25DG0

Squares and roots of 18989989200

• 18989989200 squared (18989989200²) is 360619689816116640000
• 18989989200 cubed (18989989200³) is 6848164014915404979540288000000
• The square root of 18989989200 is 137804.1697482335
• The cube root of 18989989200 is 2667.9329201583

Scales and comparisons

• 18,989,989,200 seconds is equal to 603 years, 42 weeks, 5 days, 13 hours.
• To count from 1 to 18,989,989,200 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 18989989200 cubic inches would be around 222.3 feet tall.

Recreational maths with 18989989200

• 18989989200 backwards is 00298998981
• 18989989200 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18989989200's digits is 63
• More coming soon!