21002054073

Names of 21002054073

• Cardinal: 21002054073 can be written as Twenty-one billion, two million, fifty-four thousand and seventy-three.

Scientific notation

• Scientific notation: 2.1002054073 × 10¹⁰

Factors of 21002054073

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 368142

Divisors of 21002054073

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 11 13 19 21 33 39 57 77 91 133 143 209 231 247 273 399 429 627 741 1001 1463 1729 2717 3003 4389 5187 8151 19019 57057 368089 1104267 2576623 4048979 4785157 6993691 7729869 12146937 14355471 20981073 28342853 33496099 48955837 52636727 76930601 85028559 90917983 100488297 146867511 157910181 230791803 272753949 368457089 538514207 636425881 1000097813 1105371267 1615542621 1909277643 3000293439 7000684691 21002054073
• Sum of all divisors σ(n): 39577036800
• Sum of proper divisors (its aliquot sum) s(n): 18574982727
• 21002054073 is a deficient number, because the sum of its proper divisors (18574982727) is less than itself. Its deficiency is 2427071346

Bases of 21002054073

• Binary: 10011100011110100011110100110111001₂
• Hexadecimal: 0x4E3D1E9B9
• Base-36: 9NC2WMX

Squares and roots of 21002054073

• 21002054073 squared (21002054073²) is 441086275285215889329
• 21002054073 cubed (21002054073³) is 9263717804398267605166441687017
• The square root of 21002054073 is 144920.8545137655
• The cube root of 21002054073 is 2759.0141263319

Scales and comparisons

• 21,002,054,073 seconds is equal to 667 years, 41 weeks, 4 days, 7 hours, 54 minutes, 33 seconds.
• To count from 1 to 21,002,054,073 would take you about one 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 21002054073 cubic inches would be around 229.9 feet tall.

Recreational maths with 21002054073

• 21002054073 backwards is 37045020012
• The number of decimal digits it has is: 11
• The sum of 21002054073's digits is 24
• More coming soon!