2989323981

Names of 2989323981

• Cardinal: 2989323981 can be written as Two billion, nine hundred eighty-nine million, three hundred twenty-three thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 2.989323981 × 10⁹

Factors of 2989323981

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 148

Divisors of 2989323981

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 21 27 41 63 97 123 189 287 291 369 679 861 873 1107 1681 2037 2583 2619 3977 5043 6111 7749 9409 11767 11931 15129 18333 27839 28227 35301 35793 45387 65863 83517 84681 105903 107379 163057 197589 250551 254043 317709 385769 489171 592767 751653 1141399 1157307 1467513 1778301 2700383 3424197 3471921 4402539 8101149 10272591 10415763 15816529 24303447 30817773 47449587 72910341 110715703 142348761 332147109 427046283 996441327 2989323981
• Sum of all divisors σ(n): 5241779520
• Sum of proper divisors (its aliquot sum) s(n): 2252455539
• 2989323981 is a deficient number, because the sum of its proper divisors (2252455539) is less than itself. Its deficiency is 736868442

Bases of 2989323981

• Binary: 10110010001011010111011011001101₂
• Hexadecimal: 0xB22D76CD
• Base-36: 1DFRL59

Squares and roots of 2989323981

• 2989323981 squared (2989323981²) is 8936057863381688361
• 2989323981 cubed (2989323981³) is 26712772066610502773805885141
• The square root of 2989323981 is 54674.7106165181
• The cube root of 2989323981 is 1440.5367053205

Scales and comparisons

• 2,989,323,981 seconds is equal to 95 years, 2 weeks, 4 days, 15 hours, 46 minutes, 21 seconds.
• To count from 1 to 2,989,323,981 would take you about one hundred ninety 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 2989323981 cubic inches would be around 120 feet tall.

Recreational maths with 2989323981

• 2989323981 backwards is 1893239892
• The number of decimal digits it has is: 10
• The sum of 2989323981's digits is 54
• More coming soon!