18989393968448

Names of 18989393968448

• Cardinal: 18989393968448 can be written as Eighteen trillion, nine hundred eighty-nine billion, three hundred ninety-three million, nine hundred sixty-eight thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 1.8989393968448 × 10¹³

Factors of 18989393968448

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 199

Divisors of 18989393968448

• Number of divisors d(n): 42
• Complete list of divisors:
  1 2 4 8 16 32 64 197 394 788 1576 3152 6304 12608 38809 77618 155236 310472 620944 1241888 2483776 7645373 15290746 30581492 61162984 122325968 244651936 489303872 1506138481 3012276962 6024553924 12049107848 24098215696 48196431392 96392862784 296709280757 593418561514 1186837123028 2373674246056 4747348492112 9494696984224 18989393968448
• Sum of all divisors σ(n): 37874334159486
• Sum of proper divisors (its aliquot sum) s(n): 18884940191038
• 18989393968448 is a deficient number, because the sum of its proper divisors (18884940191038) is less than itself. Its deficiency is 104453777410

Bases of 18989393968448

• Binary: 100010100010101010000000101001111110101000000₂
• Hexadecimal: 0x11455014FD40
• Base-36: 6QBLUVKU8

Squares and roots of 18989393968448

• 18989393968448 squared (18989393968448²) is 360597083288929282019528704
• 18989393968448 cubed (18989393968448³) is 6847520078446734802473649548285206331392
• The square root of 18989393968448 is 4357682.1784577177
• The cube root of 18989393968448 is 26679.0504486705

Scales and comparisons

• 18,989,393,968,448 seconds is equal to 603,803 years, 51 weeks, 3 days, 9 hours, 54 minutes, 8 seconds.
• To count from 1 to 18,989,393,968,448 would take you about one million, five hundred nine thousand, five hundred nine 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 18989393968448 cubic inches would be around 2223.3 feet tall.

Recreational maths with 18989393968448

• 18989393968448 backwards is 84486939398981
• The number of decimal digits it has is: 14
• The sum of 18989393968448's digits is 89
• More coming soon!