21204337630021

Names of 21204337630021

• Cardinal: 21204337630021 can be written as Twenty-one trillion, two hundred four billion, three hundred thirty-seven million, six hundred thirty thousand and twenty-one.

Scientific notation

• Scientific notation: 2.1204337630021 × 10¹³

Factors of 21204337630021

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 732923

Divisors of 21204337630021

• Number of divisors d(n): 48
• Complete list of divisors:
  1 7 13 31 91 217 331 403 961 2317 2821 4303 6727 10261 12493 30121 71827 87451 133393 318091 732541 933751 2226637 4135183 5127787 9523033 22708771 28946281 66661231 158961397 242471071 295214023 703971901 1697297497 2066498161 3152123923 4927803307 7516603201 9151634713 22064867461 52616222407 64061442991 97715841613 233014699231 684010891291 1631102894617 3029191090003 21204337630021
• Sum of all divisors σ(n): 27048169835904
• Sum of proper divisors (its aliquot sum) s(n): 5843832205883
• 21204337630021 is a deficient number, because the sum of its proper divisors (5843832205883) is less than itself. Its deficiency is 15360505424138

Bases of 21204337630021

• Binary: 100110100100100000101000000110001101101000101₂
• Hexadecimal: 0x134905031B45
• Base-36: 7IL4Z583P

Squares and roots of 21204337630021

• 21204337630021 squared (21204337630021²) is 449623934327924599080460441
• 21204337630021 cubed (21204337630021³) is 9533977710027702438705357143403384499261
• The square root of 21204337630021 is 4604816.7857169953
• The cube root of 21204337630021 is 27678.4375327593

Scales and comparisons

• 21,204,337,630,021 seconds is equal to 674,232 years, 18 weeks, 10 hours, 7 minutes, 1 second.
• To count from 1 to 21,204,337,630,021 would take you about one million, six hundred eighty-five thousand, five hundred eighty 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 21204337630021 cubic inches would be around 2306.5 feet tall.

Recreational maths with 21204337630021

• 21204337630021 backwards is 12003673340212
• The number of decimal digits it has is: 14
• The sum of 21204337630021's digits is 34
• More coming soon!