21426649532006401

Names of 21426649532006401

• Cardinal: 21426649532006401 can be written as Twenty-one quadrillion, four hundred twenty-six trillion, six hundred forty-nine billion, five hundred thirty-two million, six thousand, four hundred one.

Scientific notation

• Scientific notation: 2.1426649532006401 × 10¹⁶

Factors of 21426649532006401

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 3927721

Divisors of 21426649532006401

• Number of divisors d(n): 32
• Complete list of divisors:
  1 17 37 59 629 1003 2183 37111 152959 2600303 3774649 5659483 9024581 64169033 96211211 139662013 153417877 222704291 333909497 2374254221 3785972947 5676461449 8240058767 140080999039 577366536391 9815231118647 21362561846467 34064625647069 363163551389939 579098636000173 1260391148941553 21426649532006401
• Sum of all divisors σ(n): 23695283842560000
• Sum of proper divisors (its aliquot sum) s(n): 2268634310553599
• 21426649532006401 is a deficient number, because the sum of its proper divisors (2268634310553599) is less than itself. Its deficiency is 19158015221452802

Bases of 21426649532006401

• Binary: 1001100000111110110110010011010000101010000000000000001₂
• Hexadecimal: 0x4C1F6C9A150001
• Base-36: 5UZ42WNNR41

Squares and roots of 21426649532006401

• 21426649532006401 squared (21426649532006401²) is 459101310167430122991308704972801
• 21426649532006401 cubed (21426649532006401³) is 9837002872642492193920808823690259986399662899201
• The square root of 21426649532006401 is 146378446.2685896971
• The cube root of 21426649532006401 is 277748.3080370869

Scales and comparisons

• 21,426,649,532,006,401 seconds is equal to 681,301,178 years, 7 weeks, 1 day, 16 hours, 1 second.
• To count from 1 to 21,426,649,532,006,401 would take you about two billion, forty-three million, nine hundred three thousand, five hundred thirty-four 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 21426649532006401 cubic inches would be around 23145.7 feet tall.

Recreational maths with 21426649532006401

• 21426649532006401 backwards is 10460023594662412
• The number of decimal digits it has is: 17
• The sum of 21426649532006401's digits is 55
• More coming soon!