21321996147912

Names of 21321996147912

• Cardinal: 21321996147912 can be written as Twenty-one trillion, three hundred twenty-one billion, nine hundred ninety-six million, one hundred forty-seven thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 2.1321996147912 × 10¹³

Factors of 21321996147912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 192339762

Divisors of 21321996147912

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 24 31 62 93 124 149 186 248 298 372 447 596 744 894 1192 1788 3576 4619 9238 13857 18476 27714 36952 55428 110856 192339577 384679154 577018731 769358308 1154037462 1538716616 2308074924 4616149848 5962526887 11925053774 17887580661 23850107548 28658596973 35775161322 47700215096 57317193946 71550322644 85975790919 114634387892 143100645288 171951581838 229268775784 343903163676 687806327352 888416506163 1776833012326 2665249518489 3553666024652 5330499036978 7107332049304 10660998073956 21321996147912
• Sum of all divisors σ(n): 55393798464000
• Sum of proper divisors (its aliquot sum) s(n): 34071802316088
• 21321996147912 is an abundant number, because the sum of its proper divisors (34071802316088) is greater than itself. Its abundance is 12749806168176

Bases of 21321996147912

• Binary: 100110110010001101010000000011001110011001000₂
• Hexadecimal: 0x13646A019CC8
• Base-36: 7K36TZLJC

Squares and roots of 21321996147912

• 21321996147912 squared (21321996147912²) is 454627519731574166581959744
• 21321996147912 cubed (21321996147912³) is 9693566224451411152100477461199853654528
• The square root of 21321996147912 is 4617574.7040965131
• The cube root of 21321996147912 is 27729.5371251341

Scales and comparisons

• 21,321,996,147,912 seconds is equal to 677,973 years, 27 weeks, 1 day, 19 hours, 45 minutes, 12 seconds.
• To count from 1 to 21,321,996,147,912 would take you about one million, six hundred ninety-four thousand, nine hundred thirty-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 21321996147912 cubic inches would be around 2310.8 feet tall.

Recreational maths with 21321996147912

• 21321996147912 backwards is 21974169912312
• The number of decimal digits it has is: 14
• The sum of 21321996147912's digits is 57
• More coming soon!