21109441477731

Names of 21109441477731

• Cardinal: 21109441477731 can be written as Twenty-one trillion, one hundred nine billion, four hundred forty-one million, four hundred seventy-seven thousand, seven hundred thirty-one.

Scientific notation

• Scientific notation: 2.1109441477731 × 10¹³

Factors of 21109441477731

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 46603

Divisors of 21109441477731

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 163 263 489 789 3881 11643 42293 42869 126879 128607 632603 1020703 1897809 3062109 6893759 11123059 20681277 33369177 164139133 166374589 492417399 499123767 1813058617 5439175851 26754678679 43168591979 80264036037 129505775937 7036480492577 21109441477731
• Sum of all divisors σ(n): 28434268380672
• Sum of proper divisors (its aliquot sum) s(n): 7324826902941
• 21109441477731 is a deficient number, because the sum of its proper divisors (7324826902941) is less than itself. Its deficiency is 13784614574790

Bases of 21109441477731

• Binary: 100110011001011101100110000101011110001100011₂
• Hexadecimal: 0x1332ECC2BC63
• Base-36: 7HDJKFCDF

Squares and roots of 21109441477731

• 21109441477731 squared (21109441477731²) is 445608519501749944968908361
• 21109441477731 cubed (21109441477731³) is 9406546964400543490164920840877761208891
• The square root of 21109441477731 is 4594501.2218663083
• The cube root of 21109441477731 is 27637.0858480825

Scales and comparisons

• 21,109,441,477,731 seconds is equal to 671,214 years, 49 weeks, 7 hours, 48 minutes, 51 seconds.
• To count from 1 to 21,109,441,477,731 would take you about one million, six hundred seventy-eight thousand and thirty-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 21109441477731 cubic inches would be around 2303.1 feet tall.

Recreational maths with 21109441477731

• 21109441477731 backwards is 13777414490112
• The number of decimal digits it has is: 14
• The sum of 21109441477731's digits is 51
• More coming soon!