31428912438

Names of 31428912438

• Cardinal: 31428912438 can be written as Thirty-one billion, four hundred twenty-eight million, nine hundred twelve thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 3.1428912438 × 10¹⁰

Factors of 31428912438

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 687174

Divisors of 31428912438

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 27 33 42 54 63 66 77 99 121 126 154 189 198 231 242 297 363 378 462 594 693 726 847 1089 1386 1694 2079 2178 2541 3267 4158 5082 6534 7623 15246 22869 45738 687151 1374302 2061453 4122906 4810057 6184359 7558661 9620114 12368718 14430171 15117322 18553077 22675983 28860342 37106154 43290513 45351966 52910627 68027949 83145271 86581026 105821254 129871539 136055898 158731881 166290542 204083847 249435813 259743078 317463762 408167694 476195643 498871626 582016897 748307439 952391286 1164033794 1428586929 1496614878 1746050691 2244922317 2857173858 3492101382 4489844634 5238152073 10476304146 15714456219 31428912438
• Sum of all divisors σ(n): 87735567360
• Sum of proper divisors (its aliquot sum) s(n): 56306654922
• 31428912438 is an abundant number, because the sum of its proper divisors (56306654922) is greater than itself. Its abundance is 24877742484

Bases of 31428912438

• Binary: 11101010001010011110010010100110110₂
• Hexadecimal: 0x7514F2536
• Base-36: EFRYO1I

Squares and roots of 31428912438

• 31428912438 squared (31428912438²) is 987776537035471103844
• 31428912438 cubed (31428912438³) is 31044742290798685422792281211672
• The square root of 31428912438 is 177282.0138592745
• The cube root of 31428912438 is 3155.8022707881

Scales and comparisons

• 31,428,912,438 seconds is equal to 999 years, 17 weeks, 5 days, 13 hours, 27 minutes, 18 seconds.
• To count from 1 to 31,428,912,438 would take you about one thousand, nine hundred ninety-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 31428912438 cubic inches would be around 263 feet tall.

Recreational maths with 31428912438

• 31428912438 backwards is 83421982413
• The number of decimal digits it has is: 11
• The sum of 31428912438's digits is 45
• More coming soon!