21389945634504

Names of 21389945634504

• Cardinal: 21389945634504 can be written as Twenty-one trillion, three hundred eighty-nine billion, nine hundred forty-five million, six hundred thirty-four thousand, five hundred four.

Scientific notation

• Scientific notation: 2.1389945634504 × 10¹³

Factors of 21389945634504

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 82918067

Divisors of 21389945634504

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 72 3583 7166 10749 14332 21498 28664 32247 42996 64494 85992 128988 257976 82914479 165828958 248743437 331657916 497486874 663315832 746230311 994973748 1492460622 1989947496 2984921244 5969842488 297082578257 594165156514 891247734771 1188330313028 1782495469542 2376660626056 2673743204313 3564990939084 5347486408626 7129981878168 10694972817252 21389945634504
• Sum of all divisors σ(n): 57947271782400
• Sum of proper divisors (its aliquot sum) s(n): 36557326147896
• 21389945634504 is an abundant number, because the sum of its proper divisors (36557326147896) is greater than itself. Its abundance is 15167380513392

Bases of 21389945634504

• Binary: 100110111010000111100000111000111111011001000₂
• Hexadecimal: 0x13743C1C7EC8
• Base-36: 7KYELCWY0

Squares and roots of 21389945634504

• 21389945634504 squared (21389945634504²) is 457529774247036727155326016
• 21389945634504 cubed (21389945634504³) is 9786536997311003885674221466272098456064
• The square root of 21389945634504 is 4624926.5544983523
• The cube root of 21389945634504 is 27758.9622906899

Scales and comparisons

• 21,389,945,634,504 seconds is equal to 680,134 years, 5 weeks, 4 days, 5 hours, 8 minutes, 24 seconds.
• To count from 1 to 21,389,945,634,504 would take you about one million, seven hundred thousand, three hundred thirty-five 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 21389945634504 cubic inches would be around 2313.2 feet tall.

Recreational maths with 21389945634504

• 21389945634504 backwards is 40543654998312
• The number of decimal digits it has is: 14
• The sum of 21389945634504's digits is 63
• More coming soon!