18738264390625

Names of 18738264390625

• Cardinal: 18738264390625 can be written as Eighteen trillion, seven hundred thirty-eight billion, two hundred sixty-four million, three hundred ninety thousand, six hundred twenty-five.

Scientific notation

• Scientific notation: 1.8738264390625 × 10¹³

Factors of 18738264390625

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1634

Divisors of 18738264390625

• Number of divisors d(n): 84
• Complete list of divisors:
  1 5 13 25 37 65 125 185 325 481 625 925 1579 1625 2405 3125 4625 7895 8125 12025 15625 20527 23125 39475 40625 58423 60125 102635 115625 197375 203125 292115 300625 513175 578125 759499 986875 1460575 1503125 2493241 2565875 3797495 4934375 7302875 7515625 12466205 12829375 18987475 24671875 32412133 36514375 62331025 64146875 92249917 94937375 162060665 182571875 311655125 320734375 461249585 474686875 810303325 912859375 1199248921 1558275625 2306247925 2373434375 4051516625 5996244605 7791378125 11531239625 11867171875 20257583125 29981223025 38956890625 57656198125 101287915625 149906115125 288280990625 506439578125 749530575625 1441404953125 3747652878125 18738264390625
• Sum of all divisors σ(n): 25922417641932
• Sum of proper divisors (its aliquot sum) s(n): 7184153251307
• 18738264390625 is a deficient number, because the sum of its proper divisors (7184153251307) is less than itself. Its deficiency is 11554111139318

Bases of 18738264390625

• Binary: 100010000101011010111100101111011101111100001₂
• Hexadecimal: 0x110AD797BBE1
• Base-36: 6N48MT6G1

Squares and roots of 18738264390625

• 18738264390625 squared (18738264390625²) is 351122552372964902587890625
• 18738264390625 cubed (18738264390625³) is 6579427219875689828115592807769775390625
• The square root of 18738264390625 is 4328771.6953686759
• The cube root of 18738264390625 is 26560.9204301771

Scales and comparisons

• 18,738,264,390,625 seconds is equal to 595,818 years, 44 weeks, 1 hour, 50 minutes, 25 seconds.
• To count from 1 to 18,738,264,390,625 would take you about one million, four hundred eighty-nine thousand, five hundred forty-seven 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 18738264390625 cubic inches would be around 2213.4 feet tall.

Recreational maths with 18738264390625

• 18738264390625 backwards is 52609346283781
• The number of decimal digits it has is: 14
• The sum of 18738264390625's digits is 64
• More coming soon!