21223042447761

Names of 21223042447761

• Cardinal: 21223042447761 can be written as Twenty-one trillion, two hundred twenty-three billion, forty-two million, four hundred forty-seven thousand, seven hundred sixty-one.

Scientific notation

• Scientific notation: 2.1223042447761 × 10¹³

Factors of 21223042447761

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1801463619

Divisors of 21223042447761

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 7 9 11 17 21 33 51 63 77 99 119 153 187 231 357 561 693 1071 1309 1683 3927 11781 1801463581 5404390743 12610245067 16213172229 19816099391 30624880877 37830735201 59448298173 91874642631 113492205603 138712695737 178344894519 214374166139 275623927893 336873689647 416138087211 643122498417 1010621068941 1248414261633 1929367495251 2358115827529 3031863206823 7074347482587 21223042447761
• Sum of all divisors σ(n): 40468077906048
• Sum of proper divisors (its aliquot sum) s(n): 19245035458287
• 21223042447761 is a deficient number, because the sum of its proper divisors (19245035458287) is less than itself. Its deficiency is 1978006989474

Bases of 21223042447761

• Binary: 100110100110101011111111001111111100110010001₂
• Hexadecimal: 0x134D5FE7F991
• Base-36: 7ITQBIDU9

Squares and roots of 21223042447761

• 21223042447761 squared (21223042447761²) is 450417530739465218413913121
• 21223042447761 cubed (21223042447761³) is 9559230374099365369371337213566234972081
• The square root of 21223042447761 is 4606847.3436571567
• The cube root of 21223042447761 is 27686.5737292639

Scales and comparisons

• 21,223,042,447,761 seconds is equal to 674,827 years, 5 weeks, 2 days, 8 hours, 49 minutes, 21 seconds.
• To count from 1 to 21,223,042,447,761 would take you about one million, six hundred eighty-seven thousand and sixty-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 21223042447761 cubic inches would be around 2307.2 feet tall.

Recreational maths with 21223042447761

• 21223042447761 backwards is 16774424032212
• The number of decimal digits it has is: 14
• The sum of 21223042447761's digits is 45
• More coming soon!