18909719618400

Names of 18909719618400

• Cardinal: 18909719618400 can be written as Eighteen trillion, nine hundred nine billion, seven hundred nineteen million, six hundred eighteen thousand, four hundred.

Scientific notation

• Scientific notation: 1.89097196184 × 10¹³

Factors of 18909719618400

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 4952

Divisors of 18909719618400

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 25 26 30 32 36 37 39 40 45 48 50 52 60 65 72 74 75 78 80 90 96 100 104 111 117 120 130 144 148 150 156 160 180 185 195 200 208 222 225 234 240 260 288 296 300 312 325 333 360 370 390 400 416 444 450 468 480 481 520 555 585 592 600 624 650 666 720 740 780 800 888 900 925 936 962 975 1040 1110 1170 1184 1200 1248 1300 1332 1440 1443 1480 1560 1665 1723 1776 1800 1850 1872 1924 1950 2080 2220 2340 2400 2405 2600 2664 2775 2886 2925 2960 3120 3169 3330 3446 3552 3600 3700 3744 3848 3900 4329 4440 4680 4810 5169 5200 5328 5550 5772 5850 5920 6240 6338 6660 6892 7200 7215 7400 7696 7800 8325 8615 8658 8880 9360 9507 9620 10338 10400 10656 11100 11544 11700 12025 12676 13320 13784 14430 14800 15392 15507 15600 15845 16650 17230 17316 17760 18720 19014 19240 20676 21645 22200 22399 23088 23400 24050 25352 25845 26640 27568 28521 28860 29600 31014 31200 31690 33300 34460 34632 36075 38028 38480 41197 41352 43075 43290 44400 44798 46176 46800 47535 48100 50704 51690 53280 55136 57042 57720 62028 63380 63751 66600 67197 68920 69264 72150 76056 76960 77535 79225 82394 82704 86150 86580 88800 89596 93600 95070 96200 101408 103380 108225 111995 114084 115440 117253 123591 124056 126760 127502 129225 133200 134394 137840 138528 142605 144300 152112 155070 158450 164788 165408 172300 173160 179192 190140 191253 192400 201591 205985 206760 216450 223990 228168 230880 234506 237675 247182 248112 253520 255004 258450 266400 268788 275680 285210 288600 304224 310140 316900 318755 329576 335985 344600 346320 351759 358384 370773 380280 382506 384800 387675 403182 411970 413520 432900 447980 456336 469012 475350 494364 496224 507040 510008 516900 537576 559975 570420 573759 577200 586265 617955 620280 633800 637510 659152 671970 689200 692640 703518 713025 716768 741546 760560 765012 775350 806364 823940 827040 828763 865800 895960 912672 938024 950700 956265 988728 1007955 1020016 1029925 1033800 1055277 1075152 1119950 1140840 1147518 1154400 1172530 1235910 1240560 1267600 1275020 1318304 1343940 1378400 1407036 1426050 1483092 1521120 1524289 1530024 1550700 1593775 1612728 1647880 1657526 1679925 1731600 1758795 1791920 1853865 1876048 1901400 1912530 1977456 2015910 2040032 2059850 2067600 2110554 2150304 2239900 2281680 2295036 2345060 2471820 2481120 2486289 2535200 2550040 2687880 2814072 2852100 2868795 2931325 2966184 3048578 3060048 3089775 3101400 3187550 3225456 3295760 3315052 3359850 3463200 3517590 3583840 3707730 3752096 3802800 3825060 3954912 4031820 4119700 4135200 4143815 4221108 4479800 4563360 4572867 4590072 4690120 4781325 4943640 4972578 5039775 5100080 5276385 5375760 5460187 5628144 5704200 5737590 5862650 5932368 6097156 6120096 6179550 6202800 6375100 6450912 6591520 6630104 6719700 7035180 7415460 7458867 7605600 7621445 7650120 8063640 8239400 8287630 8442216 8793975 8959600 9145734 9180144 9269325 9380240 9562650 9887280 9945156 10079550 10200160 10552770 10751520 10920374 11256288 11408400 11475180 11725300 11864736 12194312 12359100 12405600 12431445 12750200 13260208 13439400 13718601 14070360 14343975 14830920 14917734 15242890 15300240 16127280 16380561 16478800 16575260 16884432 17587950 17919200 18291468 18360288 18538650 18760480 19125300 19774560 19890312 20159100 20719075 21105540 21840748 22816800 22864335 22950360 23450600 24388624 24718200 24862890 25500400 26381925 26520416 26878800 27300935 27437202 28140720 28687950 29661840 29835468 30485780 30600480 32254560 32761122 32957600 33150520 33768864 35175900 36582936 37077300 37294335 38107225 38250600 39780624 40318200 41438150 42211080 43681496 45728670 45900720 46901200 48777248 49141683 49436400 49725780 51000800 52763850 53757600 54601870 54874404 56281440 57375900 59323680 59670936 60971560 62157225 65522244 66301040 68593005 70351800 70982431 73165872 74154600 74588670 76214450 76501200 79561248 80636400 81902805 82876300 84422160 87362992 91457340 91801440 93802400 98283366 98872800 99451560 105527700 109203740 109748808 114321675 114751800 119341872 121943120 124314450 131044488 132602080 136504675 137186010 140703600 141964862 146331744 148309200 149177340 152428900 153002400 161272800 163805610 165752600 168844320 174725984 182914680 186471675 196566732 198903120 202026919 211055400 212947293 218407480 219497616 228643350 229503600 238683744 243886240 245708415 248628900 262088976 273009350 274372020 281407200 283929724 296618400 298354680 304857800 327611220 331505200 342965025 354912155 365829360 372943350 393133464 397806240 404053838 409514025 422110800 425894586 436814960 438995232 457286700 459007200 491416830 497257800 524177952 546018700 548744040 567859448 596709360 606080757 609715600 638841879 655222440 663010400 685930050 709824310 731658720 745886700 786266928 808107676 819028050 844221600 851789172 873629920 914573400 982833660 994515600 1010134595 1064736465 1092037400 1097488080 1135718896 1193418720 1212161514 1219431200 1228542075 1277683758 1310444880 1371860100 1419648620 1491773400 1572533856 1616215352 1638056100 1703578344 1774560775 1818242271 1829146800 1965667320 1989031200 2020269190 2129472930 2184074800 2194976160 2271437792 2424323028 2457084150 2555367516 2620889760 2626349947 2743720200 2839297240 2983546800 3030403785 3194209395 3232430704 3276112200 3407156688 3549121550 3636484542 3658293600 3931334640 4040538380 4258945860 4368149600 4848646056 4914168300 5050672975 5110735032 5252699894 5323682325 5487440400 5678594480 5967093600 6060807570 6388418790 6464861408 6552224400 6814313376 7098243100 7272969084 7862669280 7879049841 8081076760 8517891720 9091211355 9697292112 9828336600 10101345950 10221470064 10505399788 10647364650 10974880800 11357188960 12121615140 12776837580 13104448800 13131749735 14196486200 14545938168 15152018925 15758099682 15971046975 16162153520 17035783440 18182422710 19394584224 19656673200 20202691900 20442940128 21010799576 21294729300 23637149523 24243230280 25553675160 26263499470 28392972400 29091876336 30304037850 31516199364 31942093950 32324307040 34071566880 36364845420 39313346400 39395249205 40405383800 42021599152 42589458600 45456056775 47274299046 48486460560 51107350320 52526998940 56785944800 58183752672 60608075700 63032398728 63884187900 65658748675 72729690840 78790498410 80810767600 84043198304 85178917200 90912113550 94548598092 96972921120 102214700640 105053997880 118185747615 121216151400 126064797456 127768375800 131317497350 145459381680 157580996820 161621535200 170357834400 181824227100 189097196184 196976246025 210107995760 236371495230 242432302800 252129594912 255536751600 262634994700 290918763360 315161993640 363648454200 378194392368 393952492050 420215991520 472742990460 484864605600 511073503200 525269989400 590928738075 630323987280 727296908400 756388784736 787904984100 945485980920 1050539978800 1181857476150 1260647974560 1454593816800 1575809968200 1890971961840 2101079957600 2363714952300 3151619936400 3781943923680 4727429904600 6303239872800 9454859809200 18909719618400
• Sum of all divisors σ(n): 73816551375840
• Sum of proper divisors (its aliquot sum) s(n): 54906831757440
• 18909719618400 is an abundant number, because the sum of its proper divisors (54906831757440) is greater than itself. Its abundance is 35997112139040

Bases of 18909719618400

• Binary: 100010011001011000011000111101110001101100000₂
• Hexadecimal: 0x1132C31EE360
• Base-36: 6PB06TQW0

Squares and roots of 18909719618400

• 18909719618400 squared (18909719618400²) is 357577496046501841618560000
• 18909719618400 cubed (18909719618400³) is 6761690192088884313146213641557504000000
• The square root of 18909719618400 is 4348530.7424922271
• The cube root of 18909719618400 is 26641.6854539235

Scales and comparisons

• 18,909,719,618,400 seconds is equal to 601,270 years, 30 weeks, 5 days, 14 hours.
• To count from 1 to 18,909,719,618,400 would take you about one million, five hundred three thousand, one hundred seventy-six 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 18909719618400 cubic inches would be around 2220.1 feet tall.

Recreational maths with 18909719618400

• 18909719618400 backwards is 00481691790981
• The number of decimal digits it has is: 14
• The sum of 18909719618400's digits is 63
• More coming soon!