20421121362771949472

Names of 20421121362771949472

• Cardinal: 20421121362771949472 can be written as Twenty quintillion, four hundred twenty-one quadrillion, one hundred twenty-one trillion, three hundred sixty-two billion, seven hundred seventy-one million, nine hundred forty-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.0421121362771949472 × 10¹⁹

Factors of 20421121362771949472

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5024882225091652

Divisors of 20421121362771949472

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 4 8 16 32 127 254 508 1016 2032 4064 5024882225091523 10049764450183046 20099528900366092 40199057800732184 80398115601464368 160796231202928736 638160042586623421 1276320085173246842 2552640170346493684 5105280340692987368 10210560681385974736 20421121362771949472
• Sum of all divisors σ(n): 40520650263138049536
• Sum of proper divisors (its aliquot sum) s(n): 20099528900366100064
• 20421121362771949472 is a deficient number, because the sum of its proper divisors (20099528900366100064) is less than itself. Its deficiency is 321592462405849408

Bases of 20421121362771949472

• Binary: 10001101101100110011001011010111100000111001010011011011110100000₂
• Hexadecimal: 0x11B6665AF0729B7A0
• Base-36: 4B5EJD79DL6ZK

Squares and roots of 20421121362771949472

• 20421121362771949472 squared (20421121362771949472²) is 417022197713060882750683547715321078784
• 20421121362771949472 cubed (20421121362771949472³) is 8516060910468295204483438072294533648942756296885779202048
• The square root of 20421121362771949472 is 4518973485.5132696907
• The cube root of 20421121362771949472 is 2733337.0956304263

Scales and comparisons

• 20,421,121,362,771,949,472 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 20,421,121,362,771,949,472 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 20421121362771949472 cubic inches would be around 227778.1 feet tall.

Recreational maths with 20421121362771949472

• 20421121362771949472 backwards is 27494917726312112402
• The number of decimal digits it has is: 20
• The sum of 20421121362771949472's digits is 74
• More coming soon!