18445844879261361

Names of 18445844879261361

• Cardinal: 18445844879261361 can be written as Eighteen quadrillion, four hundred forty-five trillion, eight hundred forty-four billion, eight hundred seventy-nine million, two hundred sixty-one thousand, three hundred sixty-one.

Scientific notation

• Scientific notation: 1.8445844879261361 × 10¹⁶

Factors of 18445844879261361

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5030206

Divisors of 18445844879261361

• Number of divisors d(n): 21
• Complete list of divisors:
  1 3 9 27 81 243 729 5030203 15090609 45271827 135815481 407446443 1222339329 3667017987 25302942221209 75908826663627 227726479990881 683179439972643 2049538319917929 6148614959753787 18445844879261361
• Sum of all divisors σ(n): 27656121345794409
• Sum of proper divisors (its aliquot sum) s(n): 9210276466533048
• 18445844879261361 is a deficient number, because the sum of its proper divisors (9210276466533048) is less than itself. Its deficiency is 9235568412728313

Bases of 18445844879261361

• Binary: 1000001100010000110010111101111100111000011111010110001₂
• Hexadecimal: 0x418865EF9C3EB1
• Base-36: 51MI85JIE29

Squares and roots of 18445844879261361

• 18445844879261361 squared (18445844879261361²) is 340249193309772573567908947572321
• 18445844879261361 cubed (18445844879261361³) is 6276183840085877356214899488915459050440608388881
• 18445844879261361 is a perfect square number. Its square root is 135815481
• The cube root of 18445844879261361 is 264220.3016461003

Scales and comparisons

• 18,445,844,879,261,361 seconds is equal to 586,520,810 years, 21 weeks, 4 days, 10 hours, 49 minutes, 21 seconds.
• To count from 1 to 18,445,844,879,261,361 would take you about one billion, seven hundred fifty-nine million, five hundred sixty-two thousand, four hundred thirty-one 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 18445844879261361 cubic inches would be around 22018.4 feet tall.

Recreational maths with 18445844879261361

• 18445844879261361 backwards is 16316297844854481
• 18445844879261361 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18445844879261361's digits is 81
• More coming soon!