21110042421

Names of 21110042421

• Cardinal: 21110042421 can be written as Twenty-one billion, one hundred ten million, forty-two thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 2.1110042421 × 10¹⁰

Factors of 21110042421

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1877

Divisors of 21110042421

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 9 13 27 39 101 117 303 351 457 909 1303 1313 1371 2727 3909 3939 4113 5941 11727 11817 12339 16939 17823 35181 35451 46157 50817 53469 131603 138471 152451 160407 394809 415413 457353 595471 600041 1184427 1246239 1710839 1786413 1800123 3553281 5132517 5359239 5400369 7741123 15397551 16077717 16201107 23223369 46192653 60142571 69670107 180427713 209010321 541283139 781853423 1623849417 2345560269 7036680807 21110042421
• Sum of all divisors σ(n): 34113891840
• Sum of proper divisors (its aliquot sum) s(n): 13003849419
• 21110042421 is a deficient number, because the sum of its proper divisors (13003849419) is less than itself. Its deficiency is 8106193002

Bases of 21110042421

• Binary: 10011101010010000011010111100110101₂
• Hexadecimal: 0x4EA41AF35
• Base-36: 9P4DGZ9

Squares and roots of 21110042421

• 21110042421 squared (21110042421²) is 445633891016419541241
• 21110042421 cubed (21110042421³) is 9407350343591907323130868984461
• The square root of 21110042421 is 145292.9537899205
• The cube root of 21110042421 is 2763.7348102979

Scales and comparisons

• 21,110,042,421 seconds is equal to 671 years, 12 weeks, 1 day, 4 hours, 40 minutes, 21 seconds.
• To count from 1 to 21,110,042,421 would take you about one thousand, three hundred forty-two 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 21110042421 cubic inches would be around 230.3 feet tall.

Recreational maths with 21110042421

• 21110042421 backwards is 12424001112
• The number of decimal digits it has is: 11
• The sum of 21110042421's digits is 18
• More coming soon!