1998499971

Names of 1998499971

• Cardinal: 1998499971 can be written as One billion, nine hundred ninety-eight million, four hundred ninety-nine thousand, nine hundred seventy-one.

Scientific notation

• Scientific notation: 1.998499971 × 10⁹

Factors of 1998499971

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 307

Divisors of 1998499971

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 13 19 31 39 57 93 241 247 361 403 589 723 741 1083 1209 1767 3133 4579 4693 6859 7471 7657 9399 11191 13737 14079 20577 22413 22971 33573 59527 87001 89167 97123 141949 145483 178581 212629 261003 267501 291369 425847 436449 637887 1131013 1653019 1845337 2697031 2764177 3393039 4959057 5536011 8091093 8292531 21489247 35061403 51243589 64467741 105184209 153730767 666166657 1998499971
• Sum of all divisors σ(n): 3139727360
• Sum of proper divisors (its aliquot sum) s(n): 1141227389
• 1998499971 is a deficient number, because the sum of its proper divisors (1141227389) is less than itself. Its deficiency is 857272582

Bases of 1998499971

• Binary: 1110111000111101011000010000011₂
• Hexadecimal: 0x771EB083
• Base-36: X1USG3

Squares and roots of 1998499971

• 1998499971 squared (1998499971²) is 3994002134087000841
• 1998499971 cubed (1998499971³) is 7982013149146809292215475611
• The square root of 1998499971 is 44704.5855701627
• The cube root of 1998499971 is 1259.6059847619

Scales and comparisons

• 1,998,499,971 seconds is equal to 63 years, 28 weeks, 2 days, 18 hours, 52 minutes, 51 seconds.
• To count from 1 to 1,998,499,971 would take you about one hundred twenty-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 1998499971 cubic inches would be around 105 feet tall.

Recreational maths with 1998499971

• 1998499971 backwards is 1799948991
• The number of decimal digits it has is: 10
• The sum of 1998499971's digits is 66
• More coming soon!