21389324450

Names of 21389324450

• Cardinal: 21389324450 can be written as Twenty-one billion, three hundred eighty-nine million, three hundred twenty-four thousand, four hundred fifty.

Scientific notation

• Scientific notation: 2.138932445 × 10¹⁰

Factors of 21389324450

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 100

Divisors of 21389324450

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 5 10 13 25 26 37 43 50 65 74 86 130 169 185 215 325 338 370 430 481 559 650 845 925 962 1075 1118 1369 1591 1690 1849 1850 2150 2405 2738 2795 3182 3698 4225 4810 5590 6253 6845 7267 7955 8450 9245 12025 12506 13690 13975 14534 15910 17797 18490 20683 24037 24050 27950 31265 34225 35594 36335 39775 41366 46225 48074 58867 62530 68413 68450 72670 79550 88985 92450 103415 117734 120185 136826 156325 177970 181675 206830 231361 240370 268879 294335 312481 312650 342065 363350 444925 462722 517075 537758 588670 600925 624962 684130 765271 889369 889850 1034150 1156805 1201850 1344395 1471675 1530542 1562405 1710325 1778738 2313610 2531281 2688790 2943350 3124810 3420650 3826355 4446845 5062562 5784025 6721975 7652710 7812025 8893690 9948523 11561797 11568050 12656405 13443950 15624050 19131775 19897046 22234225 23123594 25312810 32906653 38263550 44468450 49742615 57808985 63282025 65813306 99485230 115617970 126564050 164533265 248713075 289044925 329066530 427786489 497426150 578089850 822666325 855572978 1645332650 2138932445 4277864890 10694662225 21389324450
• Sum of all divisors σ(n): 45329272569
• Sum of proper divisors (its aliquot sum) s(n): 23939948119
• 21389324450 is an abundant number, because the sum of its proper divisors (23939948119) is greater than itself. Its abundance is 2550623669

Bases of 21389324450

• Binary: 10011111010111001110011000010100010₂
• Hexadecimal: 0x4FAE730A2
• Base-36: 9TQNGDE

Squares and roots of 21389324450

• 21389324450 squared (21389324450²) is 457503200427367802500
• 21389324450 cubed (21389324450³) is 9785684390854348587156021125000
• The square root of 21389324450 is 146250.8955528135
• The cube root of 21389324450 is 2775.8693572473

Scales and comparisons

• 21,389,324,450 seconds is equal to 680 years, 5 weeks, 6 days, 15 hours, 50 seconds.
• To count from 1 to 21,389,324,450 would take you about one thousand, three hundred sixty 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 21389324450 cubic inches would be around 231.3 feet tall.

Recreational maths with 21389324450

• 21389324450 backwards is 05442398312
• The number of decimal digits it has is: 11
• The sum of 21389324450's digits is 41
• More coming soon!