18259978238944

Names of 18259978238944

• Cardinal: 18259978238944 can be written as Eighteen trillion, two hundred fifty-nine billion, nine hundred seventy-eight million, two hundred thirty-eight thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 1.8259978238944 × 10¹³

Factors of 18259978238944

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 77965371

Divisors of 18259978238944

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 104 208 416 563 1126 2252 4504 7319 9008 14638 18016 29276 58552 117104 234208 77964793 155929586 311859172 623718344 1013542309 1247436688 2027084618 2494873376 4054169236 8108338472 16216676944 32433353888 43894178459 87788356918 175576713836 351153427672 570624319967 702306855344 1141248639934 1404613710688 2282497279868 4564994559736 9129989119472 18259978238944
• Sum of all divisors σ(n): 38783430845712
• Sum of proper divisors (its aliquot sum) s(n): 20523452606768
• 18259978238944 is an abundant number, because the sum of its proper divisors (20523452606768) is greater than itself. Its abundance is 2263474367824

Bases of 18259978238944

• Binary: 100001001101101111011100001000011101111100000₂
• Hexadecimal: 0x109B7B843BE0
• Base-36: 6H0INL1WG

Squares and roots of 18259978238944

• 18259978238944 squared (18259978238944²) is 333426805286708423558235136
• 18259978238944 cubed (18259978238944³) is 6088366208815914069015312860885944336384
• The square root of 18259978238944 is 4273169.5776020871
• The cube root of 18259978238944 is 26332.9846034661

Scales and comparisons

• 18,259,978,238,944 seconds is equal to 580,610 years, 42 weeks, 6 days, 17 hours, 29 minutes, 4 seconds.
• To count from 1 to 18,259,978,238,944 would take you about one million, four hundred fifty-one thousand, five hundred twenty-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 18259978238944 cubic inches would be around 2194.4 feet tall.

Recreational maths with 18259978238944

• 18259978238944 backwards is 44983287995281
• The number of decimal digits it has is: 14
• The sum of 18259978238944's digits is 79
• More coming soon!