21089080194

Names of 21089080194

• Cardinal: 21089080194 can be written as Twenty-one billion, eighty-nine million, eighty thousand, one hundred ninety-four.

Scientific notation

• Scientific notation: 2.1089080194 × 10¹⁰

Factors of 21089080194

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 136791

Divisors of 21089080194

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 283 546 566 849 1698 1981 3679 3962 5943 7358 11037 11886 22074 25753 51506 77259 136483 154518 272966 409449 818898 955381 1774279 1910762 2866143 3548558 5322837 5732286 10645674 12419953 24839906 37259859 38624689 74519718 77249378 115874067 231748134 270372823 502120957 540745646 811118469 1004241914 1506362871 1622236938 3012725742 3514846699 7029693398 10544540097 21089080194
• Sum of all divisors σ(n): 52095396864
• Sum of proper divisors (its aliquot sum) s(n): 31006316670
• 21089080194 is an abundant number, because the sum of its proper divisors (31006316670) is greater than itself. Its abundance is 9917236476

Bases of 21089080194

• Binary: 10011101001000000011101001110000010₂
• Hexadecimal: 0x4E901D382
• Base-36: 9ORW6F6

Squares and roots of 21089080194

• 21089080194 squared (21089080194²) is 444749303428963077636
• 21089080194 cubed (21089080194³) is 9379353726239041526530651941384
• The square root of 21089080194 is 145220.7980765841
• The cube root of 21089080194 is 2762.8197130815

Scales and comparisons

• 21,089,080,194 seconds is equal to 670 years, 29 weeks, 3 days, 13 hours, 49 minutes, 54 seconds.
• To count from 1 to 21,089,080,194 would take you about one thousand, three hundred forty-one 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 21089080194 cubic inches would be around 230.2 feet tall.

Recreational maths with 21089080194

• 21089080194 backwards is 49108098012
• 21089080194 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21089080194's digits is 42
• More coming soon!