21123680848

Names of 21123680848

• Cardinal: 21123680848 can be written as Twenty-one billion, one hundred twenty-three million, six hundred eighty thousand, eight hundred forty-eight.

Scientific notation

• Scientific notation: 2.1123680848 × 10¹⁰

Factors of 21123680848

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2858

Divisors of 21123680848

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 16 41 53 82 106 164 212 241 328 424 482 656 848 964 1928 2173 2521 3856 4346 5042 8692 9881 10084 12773 17384 19762 20168 25546 34768 39524 40336 51092 79048 102184 103361 133613 158096 204368 206722 267226 413444 523693 534452 607561 826888 1047386 1068904 1215122 1653776 2094772 2137808 2430244 4189544 4860488 5478133 8379088 9720976 10956266 21912532 24910001 32200733 43825064 49820002 64401466 87650128 99640004 128802932 199280008 257605864 398560016 515211728 1320230053 2640460106 5280920212 10561840424 21123680848
• Sum of all divisors σ(n): 42910659792
• Sum of proper divisors (its aliquot sum) s(n): 21786978944
• 21123680848 is an abundant number, because the sum of its proper divisors (21786978944) is greater than itself. Its abundance is 663298096

Bases of 21123680848

• Binary: 10011101011000100011100101001010000₂
• Hexadecimal: 0x4EB11CA50
• Base-36: 9PCHSGG

Squares and roots of 21123680848

• 21123680848 squared (21123680848²) is 446209892568161999104
• 21123680848 cubed (21123680848³) is 9425595361830221155034557960192
• The square root of 21123680848 is 145339.8804458019
• The cube root of 21123680848 is 2764.3298648577

Scales and comparisons

• 21,123,680,848 seconds is equal to 671 years, 34 weeks, 5 days, 1 hour, 7 minutes, 28 seconds.
• To count from 1 to 21,123,680,848 would take you about one thousand, three hundred forty-three 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 21123680848 cubic inches would be around 230.4 feet tall.

Recreational maths with 21123680848

• 21123680848 backwards is 84808632112
• The number of decimal digits it has is: 11
• The sum of 21123680848's digits is 43
• More coming soon!