21079676368

Names of 21079676368

• Cardinal: 21079676368 can be written as Twenty-one billion, seventy-nine million, six hundred seventy-six thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1079676368 × 10¹⁰

Factors of 21079676368

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1108129

Divisors of 21079676368

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 8 16 29 41 58 82 116 164 232 328 464 656 1189 2378 4756 9512 19024 1108057 2216114 4432228 8864456 17728912 32133653 45430337 64267306 90860674 128534612 181721348 257069224 363442696 514138448 726885392 1317479773 2634959546 5269919092 10539838184 21079676368
• Sum of all divisors σ(n): 43280745480
• Sum of proper divisors (its aliquot sum) s(n): 22201069112
• 21079676368 is an abundant number, because the sum of its proper divisors (22201069112) is greater than itself. Its abundance is 1121392744

Bases of 21079676368

• Binary: 10011101000011100100101010111010000₂
• Hexadecimal: 0x4E87255D0
• Base-36: 9OMAMDS

Squares and roots of 21079676368

• 21079676368 squared (21079676368²) is 444352755779617671424
• 21079676368 cubed (21079676368³) is 9366812285063282044391681708032
• The square root of 21079676368 is 145188.4167831579
• The cube root of 21079676368 is 2762.4089959661

Scales and comparisons

• 21,079,676,368 seconds is equal to 670 years, 13 weeks, 6 days, 17 hours, 39 minutes, 28 seconds.
• To count from 1 to 21,079,676,368 would take you about one thousand, three hundred forty 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 21079676368 cubic inches would be around 230.2 feet tall.

Recreational maths with 21079676368

• 21079676368 backwards is 86367697012
• The number of decimal digits it has is: 11
• The sum of 21079676368's digits is 55
• More coming soon!