21493842432

Names of 21493842432

• Cardinal: 21493842432 can be written as Twenty-one billion, four hundred ninety-three million, eight hundred forty-two thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 2.1493842432 × 10¹⁰

Factors of 21493842432

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 461

Divisors of 21493842432

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 128 163 192 256 293 326 384 489 512 586 652 768 879 978 1172 1304 1536 1758 1956 2344 2608 3516 3912 4688 5216 7032 7824 9376 10432 14064 15648 18752 20864 28128 31296 37504 41728 47759 56256 62592 75008 83456 85849 95518 112512 125184 143277 150016 171698 191036 225024 250368 257547 286554 343396 382072 450048 515094 573108 686792 764144 1030188 1146216 1373584 1528288 2060376 2292432 2747168 3056576 4120752 4584864 5494336 6113152 8241504 9169728 10988672 12226304 13993387 16483008 18339456 21977344 24452608 27986774 32966016 36678912 41980161 43954688 55973548 65932032 73357824 83960322 111947096 131864064 167920644 223894192 335841288 447788384 671682576 895576768 1343365152 1791153536 2686730304 3582307072 5373460608 7164614144 10746921216 21493842432
• Sum of all divisors σ(n): 57809533584
• Sum of proper divisors (its aliquot sum) s(n): 36315691152
• 21493842432 is an abundant number, because the sum of its proper divisors (36315691152) is greater than itself. Its abundance is 14821848720

Bases of 21493842432

• Binary: 10100000001001000100000001000000000₂
• Hexadecimal: 0x501220200
• Base-36: 9VGVMYO

Squares and roots of 21493842432

• 21493842432 squared (21493842432²) is 461985262491643674624
• 21493842432 cubed (21493842432³) is 9929838437901548859057732845568
• The square root of 21493842432 is 146607.7843499451
• The cube root of 21493842432 is 2780.3834000139

Scales and comparisons

• 21,493,842,432 seconds is equal to 683 years, 22 weeks, 5 days, 7 hours, 47 minutes, 12 seconds.
• To count from 1 to 21,493,842,432 would take you about one thousand, three hundred sixty-six 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 21493842432 cubic inches would be around 231.7 feet tall.

Recreational maths with 21493842432

• 21493842432 backwards is 23424839412
• The number of decimal digits it has is: 11
• The sum of 21493842432's digits is 42
• More coming soon!