18291249441

Names of 18291249441

• Cardinal: 18291249441 can be written as Eighteen billion, two hundred ninety-one million, two hundred forty-nine thousand, four hundred forty-one.

Scientific notation

• Scientific notation: 1.8291249441 × 10¹⁰

Factors of 18291249441

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 883

Divisors of 18291249441

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 19 27 37 57 67 111 171 201 333 361 513 603 703 757 999 1083 1273 1809 2109 2271 2479 3249 3819 6327 6813 7437 9747 11457 13357 14383 18981 20439 22311 24187 28009 34371 40071 43149 47101 50719 66933 72561 84027 120213 129447 141303 152157 217683 252081 273277 360639 388341 423909 456471 532171 653049 756243 819831 894919 963661 1271727 1369413 1596513 1876603 2459493 2684757 2890983 4789539 5629809 7378479 8054271 8672949 10111249 14368617 16889427 18309559 24162813 26018847 30333747 35655457 50668281 54928677 91001241 106966371 164786031 273003723 320899113 494358093 677453683 962697339 2032361049 6097083147 18291249441
• Sum of all divisors σ(n): 29850161280
• Sum of proper divisors (its aliquot sum) s(n): 11558911839
• 18291249441 is a deficient number, because the sum of its proper divisors (11558911839) is less than itself. Its deficiency is 6732337602

Bases of 18291249441

• Binary: 10001000010001111100101000100100001₂
• Hexadecimal: 0x4423E5121
• Base-36: 8EI4YE9

Squares and roots of 18291249441

• 18291249441 squared (18291249441²) is 334569806112882812481
• 18291249441 cubed (18291249441³) is 6119699779037746126691599073121
• The square root of 18291249441 is 135245.1457206505
• The cube root of 18291249441 is 2634.8008251407

Scales and comparisons

• 18,291,249,441 seconds is equal to 581 years, 31 weeks, 3 days, 6 hours, 37 minutes, 21 seconds.
• To count from 1 to 18,291,249,441 would take you about one thousand, one hundred sixty-three 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 18291249441 cubic inches would be around 219.6 feet tall.

Recreational maths with 18291249441

• 18291249441 backwards is 14494219281
• The number of decimal digits it has is: 11
• The sum of 18291249441's digits is 45
• More coming soon!