31490522138

Names of 31490522138

• Cardinal: 31490522138 can be written as Thirty-one billion, four hundred ninety million, five hundred twenty-two thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 3.1490522138 × 10¹⁰

Factors of 31490522138

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 828697972

Divisors of 31490522138

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 19 38 828697951 1657395902 15745261069 31490522138
• Sum of all divisors σ(n): 49721877120
• Sum of proper divisors (its aliquot sum) s(n): 18231354982
• 31490522138 is a deficient number, because the sum of its proper divisors (18231354982) is less than itself. Its deficiency is 13259167156

Bases of 31490522138

• Binary: 11101010100111110110011110000011010₂
• Hexadecimal: 0x754FB3C1A
• Base-36: EGSN6E2

Squares and roots of 31490522138

• 31490522138 squared (31490522138²) is 991652984523868091044
• 31490522138 cubed (31490522138³) is 31227670262362639510412881532072
• The square root of 31490522138 is 177455.6906329013
• The cube root of 31490522138 is 3157.8630179297

Scales and comparisons

• 31,490,522,138 seconds is equal to 1,001 years, 15 weeks, 4 days, 15 hours, 15 minutes, 38 seconds.
• To count from 1 to 31,490,522,138 would take you about two thousand and 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 31490522138 cubic inches would be around 263.2 feet tall.

Recreational maths with 31490522138

• 31490522138 backwards is 83122509413
• 31490522138 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31490522138's digits is 38
• More coming soon!