31275813690

Names of 31275813690

• Cardinal: 31275813690 can be written as Thirty-one billion, two hundred seventy-five million, eight hundred thirteen thousand, six hundred ninety.

Scientific notation

• Scientific notation: 3.127581369 × 10¹⁰

Factors of 31275813690

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 10530598

Divisors of 31275813690

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 90 99 110 135 165 198 270 297 330 495 594 990 1485 2970 10530577 21061154 31591731 52652885 63183462 94775193 105305770 115836347 157958655 189550386 231672694 284325579 315917310 347509041 473875965 568651158 579181735 695018082 947751930 1042527123 1158363470 1421627895 1737545205 2085054246 2843255790 3127581369 3475090410 5212635615 6255162738 10425271230 15637906845 31275813690
• Sum of all divisors σ(n): 90984193920
• Sum of proper divisors (its aliquot sum) s(n): 59708380230
• 31275813690 is an abundant number, because the sum of its proper divisors (59708380230) is greater than itself. Its abundance is 28432566540

Bases of 31275813690

• Binary: 11101001000001011110000101100111010₂
• Hexadecimal: 0x7482F0B3A
• Base-36: ED8T8AI

Squares and roots of 31275813690

• 31275813690 squared (31275813690²) is 978176521971591416100
• 31275813690 cubed (31275813690³) is 30593266657115684602746866409000
• The square root of 31275813690 is 176849.6923661447
• The cube root of 31275813690 is 3150.6696716805

Scales and comparisons

• 31,275,813,690 seconds is equal to 994 years, 24 weeks, 4 days, 14 hours, 1 minute, 30 seconds.
• To count from 1 to 31,275,813,690 would take you about one thousand, nine hundred eighty-eight 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 31275813690 cubic inches would be around 262.6 feet tall.

Recreational maths with 31275813690

• 31275813690 backwards is 09631857213
• 31275813690 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31275813690's digits is 45
• More coming soon!