31121442

Names of 31121442

• Cardinal: 31121442 can be written as Thirty-one million, one hundred twenty-one thousand, four hundred forty-two.

Scientific notation

• Scientific notation: 3.1121442 × 10⁷

Factors of 31121442

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 449

Divisors of 31121442

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 9 11 18 22 27 33 54 66 99 121 198 242 297 363 433 594 726 866 1089 1299 1331 2178 2598 2662 3267 3897 3993 4763 6534 7794 7986 9526 11691 11979 14289 23382 23958 28578 35937 42867 52393 71874 85734 104786 128601 157179 257202 314358 471537 576323 943074 1152646 1414611 1728969 2829222 3457938 5186907 10373814 15560721 31121442
• Sum of all divisors σ(n): 76245120
• Sum of proper divisors (its aliquot sum) s(n): 45123678
• 31121442 is an abundant number, because the sum of its proper divisors (45123678) is greater than itself. Its abundance is 14002236

Bases of 31121442

• Binary: 1110110101110000000100010₂
• Hexadecimal: 0x1DAE022
• Base-36: IJ1GI

Squares and roots of 31121442

• 31121442 squared (31121442²) is 968544152159364
• 31121442 cubed (31121442³) is 30142490655866821482888
• The square root of 31121442 is 5578.6595164071
• The cube root of 31121442 is 314.5477410059

Scales and comparisons

• 31,121,442 seconds is equal to 51 weeks, 3 days, 4 hours, 50 minutes, 42 seconds.
• To count from 1 to 31,121,442 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 31121442 cubic inches would be around 26.2 feet tall.

Recreational maths with 31121442

• 31121442 backwards is 24412113
• 31121442 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 31121442's digits is 18
• More coming soon!