31121090

Names of 31121090

• Cardinal: 31121090 can be written as Thirty-one million, one hundred twenty-one thousand and ninety.

Scientific notation

• Scientific notation: 3.112109 × 10⁷

Factors of 31121090

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 3147

Divisors of 31121090

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 7 10 11 13 14 22 26 35 55 65 70 77 91 110 130 143 154 182 286 385 455 715 770 910 1001 1430 2002 3109 5005 6218 10010 15545 21763 31090 34199 40417 43526 68398 80834 108815 170995 202085 217630 239393 282919 341990 404170 444587 478786 565838 889174 1196965 1414595 2222935 2393930 2829190 3112109 4445870 6224218 15560545 31121090
• Sum of all divisors σ(n): 75237120
• Sum of proper divisors (its aliquot sum) s(n): 44116030
• 31121090 is an abundant number, because the sum of its proper divisors (44116030) is greater than itself. Its abundance is 12994940

Bases of 31121090

• Binary: 1110110101101111011000010₂
• Hexadecimal: 0x1DADEC2
• Base-36: IJ16Q

Squares and roots of 31121090

• 31121090 squared (31121090²) is 968522242788100
• 31121090 cubed (31121090³) is 30141467884810311029000
• The square root of 31121090 is 5578.6279675203
• The cube root of 31121090 is 314.5465551009

Scales and comparisons

• 31,121,090 seconds is equal to 51 weeks, 3 days, 4 hours, 44 minutes, 50 seconds.
• To count from 1 to 31,121,090 would take you about twenty-five weeks!

  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 31121090 cubic inches would be around 26.2 feet tall.

Recreational maths with 31121090

• 31121090 backwards is 09012113
• The number of decimal digits it has is: 8
• The sum of 31121090's digits is 17
• More coming soon!