21236518476

Names of 21236518476

• Cardinal: 21236518476 can be written as Twenty-one billion, two hundred thirty-six million, five hundred eighteen thousand, four hundred seventy-six.

Scientific notation

• Scientific notation: 2.1236518476 × 10¹⁰

Factors of 21236518476

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7010

Divisors of 21236518476

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 36 73 146 219 292 438 657 876 1314 1483 2628 2966 4449 5449 5932 8898 10898 13347 16347 17796 21796 26694 32694 49041 53388 65388 98082 108259 196164 216518 324777 397777 433036 649554 795554 974331 1193331 1299108 1591108 1948662 2386662 3579993 3897324 4773324 7159986 8080867 14319972 16161734 24242601 32323468 48485202 72727803 96970404 145455606 290911212 589903291 1179806582 1769709873 2359613164 3539419746 5309129619 7078839492 10618259238 21236518476
• Sum of all divisors σ(n): 54463245200
• Sum of proper divisors (its aliquot sum) s(n): 33226726724
• 21236518476 is an abundant number, because the sum of its proper divisors (33226726724) is greater than itself. Its abundance is 11990208248

Bases of 21236518476

• Binary: 10011110001110010111000111001001100₂
• Hexadecimal: 0x4F1CB8E4C
• Base-36: 9R7OAJ0

Squares and roots of 21236518476

• 21236518476 squared (21236518476²) is 450989716981489362576
• 21236518476 cubed (21236518476³) is 9577451457163409798342686954176
• The square root of 21236518476 is 145727.5487888271
• The cube root of 21236518476 is 2769.2432551625

Scales and comparisons

• 21,236,518,476 seconds is equal to 675 years, 13 weeks, 2 days, 54 minutes, 36 seconds.
• To count from 1 to 21,236,518,476 would take you about one thousand, three hundred fifty 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 21236518476 cubic inches would be around 230.8 feet tall.

Recreational maths with 21236518476

• 21236518476 backwards is 67481563212
• The number of decimal digits it has is: 11
• The sum of 21236518476's digits is 45
• More coming soon!