21409663429

Names of 21409663429

• Cardinal: 21409663429 can be written as Twenty-one billion, four hundred nine million, six hundred sixty-three thousand, four hundred twenty-nine.

Scientific notation

• Scientific notation: 2.1409663429 × 10¹⁰

Factors of 21409663429

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2114

Divisors of 21409663429

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 11 19 61 77 127 133 209 427 671 889 1159 1397 1463 1889 2413 4697 7747 8113 9779 12749 13223 16891 20779 26543 35891 54229 85217 89243 115229 145453 147193 185801 239903 251237 394801 596519 806603 1030351 1267519 1619123 1679321 2189351 2638933 2763607 4558157 8872633 11333861 14634083 15325457 18472531 24082861 31907099 50139727 102438581 160974913 168580027 278047577 350978089 1126824391 1946333039 3058523347 21409663429
• Sum of all divisors σ(n): 28798156800
• Sum of proper divisors (its aliquot sum) s(n): 7388493371
• 21409663429 is a deficient number, because the sum of its proper divisors (7388493371) is less than itself. Its deficiency is 14021170058

Bases of 21409663429

• Binary: 10011111100000111011000100111000101₂
• Hexadecimal: 0x4FC1D89C5
• Base-36: 9U2RE11

Squares and roots of 21409663429

• 21409663429 squared (21409663429²) is 458373688143060038041
• 21409663429 cubed (21409663429³) is 9813626387852323416597746502589
• The square root of 21409663429 is 146320.4135758233
• The cube root of 21409663429 is 2776.7489309625

Scales and comparisons

• 21,409,663,429 seconds is equal to 680 years, 39 weeks, 4 days, 43 minutes, 49 seconds.
• To count from 1 to 21,409,663,429 would take you about one thousand, three hundred sixty-one 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 21409663429 cubic inches would be around 231.4 feet tall.

Recreational maths with 21409663429

• 21409663429 backwards is 92436690412
• The number of decimal digits it has is: 11
• The sum of 21409663429's digits is 46
• More coming soon!