18211869308161440

Names of 18211869308161440

• Cardinal: 18211869308161440 can be written as Eighteen quadrillion, two hundred eleven trillion, eight hundred sixty-nine billion, three hundred eight million, one hundred sixty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.821186930816144 × 10¹⁶

Factors of 18211869308161440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 309213

Divisors of 18211869308161440

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 3221 6442 9663 12884 13421 16105 19326 25768 26842 28989 32210 38652 40263 48315 51536 53684 57978 64420 67105 77304 80526 96630 103072 107368 115956 120789 128840 134210 144945 154608 161052 193260 201315 214736 231912 241578 257680 268420 289890 292561 309216 322104 386520 402630 429472 463824 483156 515360 536840 579780 585122 603945 644208 773040 805260 877683 927648 966312 1073680 1159560 1170244 1207890 1288416 1462805 1546080 1610520 1755366 1932624 2147360 2319120 2340488 2415780 2633049 2925610 3221040 3510732 3865248 4388415 4638240 4680976 4831560 5266098 5851220 6442080 7021464 8776830 9361952 9663120 10532196 11702440 13165245 14042928 17553660 19326240 21064392 23404880 26330490 28085856 35107320 42128784 43229041 46809760 52660980 70214640 84257568 86458082 105321960 129687123 140429280 172916164 210643920 216145205 259374246 345832328 389061369 421287840 432290410 518748492 648435615 691664656 778122738 864580820 942338981 1037496984 1296871230 1383329312 1556245476 1729161640 1884677962 1945306845 2074993968 2593742460 2827016943 3112490952 3458323280 3769355924 3890613690 3926461181 4149987936 4711694905 5187484920 5654033886 6224981904 6916646560 7538711848 7781227380 7852922362 8481050829 9423389810 10374969840 11308067772 11779383543 12449963808 14135084715 15077423696 15562454760 15705844724 16962101658 18846779620 19632305905 20749939680 22616135544 23558767086 28270169430 30154847392 31124909520 31411689448 33924203316 35338150629 37693559240 39264611810 42405254145 45232271088 47117534172 56540338860 58896917715 62249819040 62823378896 67848406632 70676301258 75387118480 78529223620 84810508290 90464542176 94235068344 113080677720 117793835430 125646757792 135696813264 141352602516 150774236960 157058447240 169621016580 176690753145 188470136688 226161355440 235587670860 271393626528 282705205032 314116894480 339242033160 353381506290 376940273376 452322710880 471175341720 565410410064 628233788960 678484066320 706763012580 942350683440 1130820820128 1356968132640 1413526025160 1884701366880 2827052050320 5654104100640 12647131464001 25294262928002 37941394392003 50588525856004 63235657320005 75882788784006 101177051712008 113824183176009 126471314640010 151765577568012 189706971960015 202354103424016 227648366352018 252942629280020 303531155136024 379413943920030 404708206848032 455296732704036 505885258560040 569120915880045 607062310272048 758827887840060 910593465408072 1011770517120080 1138241831760090 1214124620544096 1517655775680120 1821186930816144 2023541034240160 2276483663520180 3035311551360240 3642373861632288 4552967327040360 6070623102720480 9105934654080720 18211869308161440
• Sum of all divisors σ(n): 62172143245032912
• Sum of proper divisors (its aliquot sum) s(n): 43960273936871472
• 18211869308161440 is an abundant number, because the sum of its proper divisors (43960273936871472) is greater than itself. Its abundance is 25748404628710032

Bases of 18211869308161440

• Binary: 1000000101100111001100101000000110011110000110110100000₂
• Hexadecimal: 0x40B39940CF0DA0
• Base-36: 4ZBKH9DJQG0

Squares and roots of 18211869308161440

• 18211869308161440 squared (18211869308161440²) is 331672183697552647226193102873600
• 18211869308161440 cubed (18211869308161440³) is 6040370462652342168068990403273199057996713984000
• The square root of 18211869308161440 is 134951359.0452554129
• The cube root of 18211869308161440 is 263098.3806361993

Scales and comparisons

• 18,211,869,308,161,440 seconds is equal to 579,081,110 years, 51 weeks, 3 days, 24 minutes.
• To count from 1 to 18,211,869,308,161,440 would take you about one billion, seven hundred thirty-seven million, two hundred forty-three thousand, three hundred thirty-two 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 18211869308161440 cubic inches would be around 21924.9 feet tall.

Recreational maths with 18211869308161440

• 18211869308161440 backwards is 04416180396811281
• The number of decimal digits it has is: 17
• The sum of 18211869308161440's digits is 63
• More coming soon!