18009933786

Names of 18009933786

• Cardinal: 18009933786 can be written as Eighteen billion, nine million, nine hundred thirty-three thousand, seven hundred eighty-six.

Scientific notation

• Scientific notation: 1.8009933786 × 10¹⁰

Factors of 18009933786

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 332

Divisors of 18009933786

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 6 9 13 18 26 31 39 62 78 93 117 186 234 279 283 403 558 566 806 849 961 1209 1698 1922 2418 2547 2883 3627 3679 5094 5766 7254 7358 8649 8773 11037 12493 17298 17546 22074 24986 26319 33111 37479 52638 66222 74958 78957 80089 112437 114049 157914 160178 224874 228098 240267 271963 342147 480534 543926 684294 720801 815889 1026441 1041157 1441602 1631778 2052882 2082314 2447667 2482759 3123471 3535519 4895334 4965518 6246942 7071038 7448277 9370413 10606557 14896554 18740826 21213114 22344831 31819671 32275867 44689662 63639342 64551734 76965529 96827601 153931058 193655202 230896587 290482803 461793174 580965606 692689761 1000551877 1385379522 2001103754 3001655631 6003311262 9004966893 18009933786
• Sum of all divisors σ(n): 43576472394
• Sum of proper divisors (its aliquot sum) s(n): 25566538608
• 18009933786 is an abundant number, because the sum of its proper divisors (25566538608) is greater than itself. Its abundance is 7556604822

Bases of 18009933786

• Binary: 10000110001011110011100011111011010₂
• Hexadecimal: 0x43179C7DA
• Base-36: 89UNDUI

Squares and roots of 18009933786

• 18009933786 squared (18009933786²) is 324357714976104293796
• 18009933786 cubed (18009933786³) is 5841660969697898903496250591656
• The square root of 18009933786 is 134201.0945782485
• The cube root of 18009933786 is 2621.2234145139

Scales and comparisons

• 18,009,933,786 seconds is equal to 572 years, 34 weeks, 2 days, 7 hours, 23 minutes, 6 seconds.
• To count from 1 to 18,009,933,786 would take you about one thousand, one hundred forty-five 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 18009933786 cubic inches would be around 218.4 feet tall.

Recreational maths with 18009933786

• 18009933786 backwards is 68733990081
• The number of decimal digits it has is: 11
• The sum of 18009933786's digits is 54
• More coming soon!