21404949221408

Names of 21404949221408

• Cardinal: 21404949221408 can be written as Twenty-one trillion, four hundred four billion, nine hundred forty-nine million, two hundred twenty-one thousand, four hundred eight.

Scientific notation

• Scientific notation: 2.1404949221408 × 10¹³

Factors of 21404949221408

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 692857

Divisors of 21404949221408

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 16 32 71 142 284 568 1136 2272 13877 27754 55508 111016 222032 444064 678907 985267 1357814 1970534 2715628 3941068 5431256 7882136 10862512 15764272 21725024 31528544 48202397 96404794 192809588 385619176 771238352 1542476704 9421192439 18842384878 37684769756 75369539512 150739079024 301478158048 668904663169 1337809326338 2675618652676 5351237305352 10702474610704 21404949221408
• Sum of all divisors σ(n): 42737671376064
• Sum of proper divisors (its aliquot sum) s(n): 21332722154656
• 21404949221408 is a deficient number, because the sum of its proper divisors (21332722154656) is less than itself. Its deficiency is 72227066752

Bases of 21404949221408

• Binary: 100110111011110111010011001010001000000100000₂
• Hexadecimal: 0x1377BA651020
• Base-36: 7L5AQ3UOW

Squares and roots of 21404949221408

• 21404949221408 squared (21404949221408²) is 458171851171054945405502464
• 21404949221408 cubed (21404949221408³) is 9807145208994934606683497913635825549312
• The square root of 21404949221408 is 4626548.3053144489
• The cube root of 21404949221408 is 27765.4511128959

Scales and comparisons

• 21,404,949,221,408 seconds is equal to 680,611 years, 9 weeks, 20 hours, 10 minutes, 8 seconds.
• To count from 1 to 21,404,949,221,408 would take you about one million, seven hundred one thousand, five hundred twenty-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 21404949221408 cubic inches would be around 2313.8 feet tall.

Recreational maths with 21404949221408

• 21404949221408 backwards is 80412294940412
• The number of decimal digits it has is: 14
• The sum of 21404949221408's digits is 50
• More coming soon!