21471785889442

Names of 21471785889442

• Cardinal: 21471785889442 can be written as Twenty-one trillion, four hundred seventy-one billion, seven hundred eighty-five million, eight hundred eighty-nine thousand, four hundred forty-two.

Scientific notation

• Scientific notation: 2.1471785889442 × 10¹³

Factors of 21471785889442

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4300

Divisors of 21471785889442

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 7 14 43 47 86 94 301 329 602 658 1849 2021 3698 4042 4201 8402 12943 14147 25886 28294 29407 58814 86903 173806 180643 197447 361286 394894 608321 1216642 1264501 1382129 2529002 2764258 7767649 8490221 15535298 16980442 17648401 35296802 54373543 59431547 108747086 118863094 123538807 247077614 365079503 730159006 758881243 829474847 1517762486 1658949694 2555556521 5111113042 5312168701 5806323929 10624337402 11612647858 32631893449 35667418421 65263786898 71334836842 228423254143 249671928947 456846508286 499343857894 1533698992103 3067397984206 10735892944721 21471785889442
• Sum of all divisors σ(n): 38495666855808
• Sum of proper divisors (its aliquot sum) s(n): 17023880966366
• 21471785889442 is a deficient number, because the sum of its proper divisors (17023880966366) is less than itself. Its deficiency is 4447904923076

Bases of 21471785889442

• Binary: 100111000011101001010001010111010111010100010₂
• Hexadecimal: 0x13874A2BAEA2
• Base-36: 7M002XLSY

Squares and roots of 21471785889442

• 21471785889442 squared (21471785889442²) is 461037589282040579047071364
• 21471785889442 cubed (21471785889442³) is 9899300404048475160770957916249988138888
• The square root of 21471785889442 is 4633765.8431821951
• The cube root of 21471785889442 is 27794.3201693759

Scales and comparisons

• 21,471,785,889,442 seconds is equal to 682,736 years, 19 weeks, 3 days, 9 hours, 17 minutes, 22 seconds.
• To count from 1 to 21,471,785,889,442 would take you about one million, seven hundred six thousand, eight 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 21471785889442 cubic inches would be around 2316.2 feet tall.

Recreational maths with 21471785889442

• 21471785889442 backwards is 24498858717412
• The number of decimal digits it has is: 14
• The sum of 21471785889442's digits is 70
• More coming soon!