21084178758672

Names of 21084178758672

• Cardinal: 21084178758672 can be written as Twenty-one trillion, eighty-four billion, one hundred seventy-eight million, seven hundred fifty-eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1084178758672 × 10¹³

Factors of 21084178758672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 788606889

Divisors of 21084178758672

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 48 557 1114 1671 2228 3342 4456 6684 8912 13368 26736 788606327 1577212654 2365818981 3154425308 4731637962 6308850616 9463275924 12617701232 18926551848 37853103696 439253724139 878507448278 1317761172417 1757014896556 2635522344834 3514029793112 5271044689668 7028059586224 10542089379336 21084178758672
• Sum of all divisors σ(n): 54565249046976
• Sum of proper divisors (its aliquot sum) s(n): 33481070288304
• 21084178758672 is an abundant number, because the sum of its proper divisors (33481070288304) is greater than itself. Its abundance is 12396891529632

Bases of 21084178758672

• Binary: 100110010110100001010111111000011110000010000₂
• Hexadecimal: 0x132D0AFC3C10
• Base-36: 7H1XRNLLC

Squares and roots of 21084178758672

• 21084178758672 squared (21084178758672²) is 444542593927635558815203584
• 21084178758672 cubed (21084178758672³) is 9372815516214006061456346148742085480448
• The square root of 21084178758672 is 4591751.1647161369
• The cube root of 21084178758672 is 27626.0565551759

Scales and comparisons

• 21,084,178,758,672 seconds is equal to 670,411 years, 34 weeks, 4 days, 17 hours, 51 minutes, 12 seconds.
• To count from 1 to 21,084,178,758,672 would take you about one million, six hundred seventy-six thousand and twenty-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 21084178758672 cubic inches would be around 2302.2 feet tall.

Recreational maths with 21084178758672

• 21084178758672 backwards is 27685787148012
• The number of decimal digits it has is: 14
• The sum of 21084178758672's digits is 66
• More coming soon!