21498542429

Names of 21498542429

• Cardinal: 21498542429 can be written as Twenty-one billion, four hundred ninety-eight million, five hundred forty-two thousand, four hundred twenty-nine.

Scientific notation

• Scientific notation: 2.1498542429 × 10¹⁰

Factors of 21498542429

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 427

Divisors of 21498542429

• Number of divisors d(n): 48
• Complete list of divisors:
  1 7 13 43 91 167 197 301 559 1169 1379 2171 2561 3913 7181 8471 15197 17927 27889 32899 50267 59297 93353 110123 195223 230293 362557 427687 653471 770861 1199227 1414657 2537899 2993809 5494133 8394589 9902599 15589951 18390541 38458931 71423729 109129657 128733787 236247719 499966103 1653734033 3071220347 21498542429
• Sum of all divisors σ(n): 27376449408
• Sum of proper divisors (its aliquot sum) s(n): 5877906979
• 21498542429 is a deficient number, because the sum of its proper divisors (5877906979) is less than itself. Its deficiency is 15620635450

Bases of 21498542429

• Binary: 10100000001011010011011100101011101₂
• Hexadecimal: 0x50169B95D
• Base-36: 9VJODI5

Squares and roots of 21498542429

• 21498542429 squared (21498542429²) is 462187326571513220041
• 21498542429 cubed (21498542429³) is 9936353850443756063785851619589
• The square root of 21498542429 is 146623.8126260533
• The cube root of 21498542429 is 2780.5860447371

Scales and comparisons

• 21,498,542,429 seconds is equal to 683 years, 30 weeks, 3 days, 17 hours, 20 minutes, 29 seconds.
• To count from 1 to 21,498,542,429 would take you about one thousand, three hundred sixty-seven 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 21498542429 cubic inches would be around 231.7 feet tall.

Recreational maths with 21498542429

• 21498542429 backwards is 92424589412
• The number of decimal digits it has is: 11
• The sum of 21498542429's digits is 50
• More coming soon!