9981379371990

Names of 9981379371990

• Cardinal: 9981379371990 can be written as Nine trillion, nine hundred eighty-one billion, three hundred seventy-nine million, three hundred seventy-one thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 9.98137937199 × 10¹²

Factors of 9981379371990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 160002

Divisors of 9981379371990

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 159979 319958 479937 799895 959874 1599790 2079727 2399685 4159454 4799370 6239181 10398635 12478362 20797270 31195905 62391810 25593280441 51186560882 76779841323 127966402205 153559682646 255932804410 332712645733 383899206615 665425291466 767798413230 998137937199 1663563228665 1996275874398 3327126457330 4990689685995 9981379371990
• Sum of all divisors σ(n): 25798187944368
• Sum of proper divisors (its aliquot sum) s(n): 15816808572378
• 9981379371990 is an abundant number, because the sum of its proper divisors (15816808572378) is greater than itself. Its abundance is 5835429200388

Bases of 9981379371990

• Binary: 10010001001111111000100100100110001111010110₂
• Hexadecimal: 0x913F89263D6
• Base-36: 3JDDRKE6U

Squares and roots of 9981379371990

• 9981379371990 squared (9981379371990²) is 99627934167587486796560100
• 9981379371990 cubed (9981379371990³) is 994424206974335452374831467830291599000
• The square root of 9981379371990 is 3159332.1085302191
• The cube root of 9981379371990 is 21530.9662827173

Scales and comparisons

• 9,981,379,371,990 seconds is equal to 317,376 years, 51 weeks, 3 days, 5 hours, 6 minutes, 30 seconds.
• To count from 1 to 9,981,379,371,990 would take you about seven hundred ninety-three thousand, four hundred forty-two 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 9981379371990 cubic inches would be around 1794.2 feet tall.

Recreational maths with 9981379371990

• 9981379371990 backwards is 0991739731899
• The number of decimal digits it has is: 13
• The sum of 9981379371990's digits is 75
• More coming soon!