18240590394

Names of 18240590394

• Cardinal: 18240590394 can be written as Eighteen billion, two hundred forty million, five hundred ninety thousand, three hundred ninety-four.

Scientific notation

• Scientific notation: 1.8240590394 × 10¹⁰

Factors of 18240590394

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 127

Divisors of 18240590394

• Number of divisors d(n): 132
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 39 54 78 81 109 117 162 218 234 243 327 351 486 654 702 729 981 1053 1417 1458 1962 2106 2187 2834 2943 3159 4251 4374 5886 6318 6561 8502 8829 9477 11881 12753 13122 17658 18954 19683 23762 25506 26487 28431 35643 38259 39366 52974 56862 59049 71286 76518 79461 85293 106929 114777 118098 154453 158922 170586 213858 229554 238383 255879 308906 320787 344331 463359 476766 511758 641574 688662 715149 767637 926718 962361 1032993 1390077 1430298 1535274 1924722 2065986 2145447 2780154 2887083 3098979 4170231 4290894 5774166 6197958 6436341 8340462 8661249 9296937 12510693 12872682 17322498 18593874 25021386 25983747 27890811 37532079 51967494 55781622 75064158 77951241 83672433 112596237 155902482 167344866 225192474 233853723 337788711 467707446 675577422 701561169 1013366133 1403122338 2026732266 3040098399 6080196798 9120295197 18240590394
• Sum of all divisors σ(n): 44607311406
• Sum of proper divisors (its aliquot sum) s(n): 26366721012
• 18240590394 is an abundant number, because the sum of its proper divisors (26366721012) is greater than itself. Its abundance is 8126130618

Bases of 18240590394

• Binary: 10000111111001110010101001000111010₂
• Hexadecimal: 0x43F39523A
• Base-36: 8DNZ5MI

Squares and roots of 18240590394

• 18240590394 squared (18240590394²) is 332719137921685075236
• 18240590394 cubed (18240590394³) is 6068993511074249907642948882984
• The square root of 18240590394 is 135057.7298565321
• The cube root of 18240590394 is 2632.3661470403

Scales and comparisons

• 18,240,590,394 seconds is equal to 579 years, 51 weeks, 4 days, 22 hours, 39 minutes, 54 seconds.
• To count from 1 to 18,240,590,394 would take you about one thousand, one hundred fifty-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 18240590394 cubic inches would be around 219.4 feet tall.

Recreational maths with 18240590394

• 18240590394 backwards is 49309504281
• The number of decimal digits it has is: 11
• The sum of 18240590394's digits is 45
• More coming soon!