21360818016

Names of 21360818016

• Cardinal: 21360818016 can be written as Twenty-one billion, three hundred sixty million, eight hundred eighteen thousand and sixteen.

Scientific notation

• Scientific notation: 2.1360818016 × 10¹⁰

Factors of 21360818016

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 24723174

Divisors of 21360818016

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 24723169 49446338 74169507 98892676 148339014 197785352 222508521 296678028 395570704 445017042 593356056 667525563 791141408 890034084 1186712112 1335051126 1780068168 2373424224 2670102252 3560136336 5340204504 7120272672 10680409008 21360818016
• Sum of all divisors σ(n): 62302388400
• Sum of proper divisors (its aliquot sum) s(n): 40941570384
• 21360818016 is an abundant number, because the sum of its proper divisors (40941570384) is greater than itself. Its abundance is 19580752368

Bases of 21360818016

• Binary: 10011111001001101000011011101100000₂
• Hexadecimal: 0x4F9343760
• Base-36: 9T9OGO0

Squares and roots of 21360818016

• 21360818016 squared (21360818016²) is 456284546312670176256
• 21360818016 cubed (21360818016³) is 9746611157298071470035060228096
• The square root of 21360818016 is 146153.4057625753
• The cube root of 21360818016 is 2774.6356371861

Scales and comparisons

• 21,360,818,016 seconds is equal to 679 years, 10 weeks, 5 days, 16 hours, 33 minutes, 36 seconds.
• To count from 1 to 21,360,818,016 would take you about one thousand, three hundred fifty-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 21360818016 cubic inches would be around 231.2 feet tall.

Recreational maths with 21360818016

• 21360818016 backwards is 61081806312
• 21360818016 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21360818016's digits is 36
• More coming soon!