18278981943440

Names of 18278981943440

• Cardinal: 18278981943440 can be written as Eighteen trillion, two hundred seventy-eight billion, nine hundred eighty-one million, nine hundred forty-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.827898194344 × 10¹³

Factors of 18278981943440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 213502

Divisors of 18278981943440

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 80 601 1202 1801 2404 3005 3602 4808 6010 7204 9005 9616 12020 14408 18010 24040 28816 36020 48080 72040 144080 211093 422186 844372 1055465 1082401 1688744 2110930 2164802 3377488 4221860 4329604 5412005 8443720 8659208 10824010 16887440 17318416 21648020 43296040 86592080 126866893 253733786 380178493 507467572 634334465 760356986 1014935144 1268668930 1520713972 1900892465 2029870288 2537337860 3041427944 3801784930 5074675720 6082855888 7603569860 10149351440 15207139720 30414279440 228487274293 456974548586 913949097172 1142436371465 1827898194344 2284872742930 3655796388688 4569745485860 9139490971720 18278981943440
• Sum of all divisors σ(n): 42593184497136
• Sum of proper divisors (its aliquot sum) s(n): 24314202553696
• 18278981943440 is an abundant number, because the sum of its proper divisors (24314202553696) is greater than itself. Its abundance is 6035220610256

Bases of 18278981943440

• Binary: 100001001111111101000001110011100000010010000₂
• Hexadecimal: 0x109FE839C090
• Base-36: 6H98XWE4W

Squares and roots of 18278981943440

• 18278981943440 squared (18278981943440²) is 334121180888605559359033600
• 18278981943440 cubed (18278981943440³) is 6107395032383671033564176274448259584000
• The square root of 18278981943440 is 4275392.6069356483
• The cube root of 18278981943440 is 26342.1166106261

Scales and comparisons

• 18,278,981,943,440 seconds is equal to 581,215 years, 4 weeks, 3 days, 17 minutes, 20 seconds.
• To count from 1 to 18,278,981,943,440 would take you about one million, four hundred fifty-three thousand and thirty-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 18278981943440 cubic inches would be around 2195.2 feet tall.

Recreational maths with 18278981943440

• 18278981943440 backwards is 04434918987281
• The number of decimal digits it has is: 14
• The sum of 18278981943440's digits is 68
• More coming soon!