21210184017

Names of 21210184017

• Cardinal: 21210184017 can be written as Twenty-one billion, two hundred ten million, one hundred eighty-four thousand and seventeen.

Scientific notation

• Scientific notation: 2.1210184017 × 10¹⁰

Factors of 21210184017

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3000

Divisors of 21210184017

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 11 27 33 47 99 121 141 297 363 423 517 1089 1269 1551 2209 2939 3267 4653 5687 6627 8817 13959 17061 19881 24299 26451 32329 51183 59643 72897 79353 96987 138133 153549 218691 267289 290961 355619 414399 656073 801867 872883 1066857 1243197 1519463 2405601 3200571 3729591 4558389 6492251 7216803 9601713 13675167 16714093 19476753 41025501 50142279 58430259 71414761 150426837 175290777 214244283 451280511 642732849 785562371 1928198547 2356687113 7070061339 21210184017
• Sum of all divisors σ(n): 35301285600
• Sum of proper divisors (its aliquot sum) s(n): 14091101583
• 21210184017 is a deficient number, because the sum of its proper divisors (14091101583) is less than itself. Its deficiency is 7119082434

Bases of 21210184017

• Binary: 10011110000001110011011100101010001₂
• Hexadecimal: 0x4F039B951
• Base-36: 9QRZUQ9

Squares and roots of 21210184017

• 21210184017 squared (21210184017²) is 449871906035002256289
• 21210184017 cubed (21210184017³) is 9541865911080930698899885532913
• The square root of 21210184017 is 145637.1656446253
• The cube root of 21210184017 is 2768.0981100177

Scales and comparisons

• 21,210,184,017 seconds is equal to 674 years, 21 weeks, 5 days, 5 hours, 46 minutes, 57 seconds.
• To count from 1 to 21,210,184,017 would take you about one thousand, three hundred forty-eight 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 21210184017 cubic inches would be around 230.7 feet tall.

Recreational maths with 21210184017

• 21210184017 backwards is 71048101212
• 21210184017 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21210184017's digits is 27
• More coming soon!