30989825721

Names of 30989825721

• Cardinal: 30989825721 can be written as Thirty billion, nine hundred eighty-nine million, eight hundred twenty-five thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 3.0989825721 × 10¹⁰

Factors of 30989825721

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1227

Divisors of 30989825721

• Number of divisors d(n): 112
• Complete list of divisors:
  1 3 9 19 23 27 57 69 81 89 171 207 243 267 437 513 621 729 801 1093 1311 1539 1691 1863 2047 2403 3279 3933 4617 5073 5589 6141 7209 9837 11799 13851 15219 16767 18423 20767 21627 25139 29511 35397 38893 45657 55269 62301 64881 75417 88533 97277 106191 116679 136971 165807 186903 226251 265599 291831 318573 350037 410913 477641 497421 560709 678753 796797 875493 1050111 1232739 1432923 1492263 1682127 1848263 2036259 2237371 2626479 3150333 4298769 5046381 5544789 6108777 6712113 7879437 9450999 12896307 15139143 16634367 18326331 20136339 23638311 28352997 38688921 42510049 49903101 60409017 70914933 116066763 127530147 149709303 181227051 348200289 382590441 449127909 543681153 1147771323 1347383727 1631043459 3443313969 10329941907 30989825721
• Sum of all divisors σ(n): 51656054400
• Sum of proper divisors (its aliquot sum) s(n): 20666228679
• 30989825721 is a deficient number, because the sum of its proper divisors (20666228679) is less than itself. Its deficiency is 10323597042

Bases of 30989825721

• Binary: 11100110111001000110011011010111001₂
• Hexadecimal: 0x7372336B9
• Base-36: E8IJIK9

Squares and roots of 30989825721

• 30989825721 squared (30989825721²) is 960369298217953169841
• 30989825721 cubed (30989825721³) is 29761677179573444606712103280361
• The square root of 30989825721 is 176039.2732346961
• The cube root of 30989825721 is 3141.0369450751

Scales and comparisons

• 30,989,825,721 seconds is equal to 985 years, 19 weeks, 5 days, 12 hours, 55 minutes, 21 seconds.
• To count from 1 to 30,989,825,721 would take you about one thousand, nine hundred seventy 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 30989825721 cubic inches would be around 261.8 feet tall.

Recreational maths with 30989825721

• 30989825721 backwards is 12752898903
• The number of decimal digits it has is: 11
• The sum of 30989825721's digits is 54
• More coming soon!