21330721760931

Names of 21330721760931

• Cardinal: 21330721760931 can be written as Twenty-one trillion, three hundred thirty billion, seven hundred twenty-one million, seven hundred sixty thousand, nine hundred thirty-one.

Scientific notation

• Scientific notation: 2.1330721760931 × 10¹³

Factors of 21330721760931

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 90321

Divisors of 21330721760931

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 11 33 99 353 1059 3177 3883 7393 11649 22179 34947 66537 81323 82561 243969 247683 731907 743049 908171 2609729 2724513 7829187 8173539 23487561 28707019 29144033 86121057 87432099 258363171 262296297 320584363 610373473 961753089 1831120419 2885259267 5493361257 6714108203 20142324609 60426973827 215461835969 646385507907 1939156523721 2370080195659 7110240586977 21330721760931
• Sum of all divisors σ(n): 33712232347872
• Sum of proper divisors (its aliquot sum) s(n): 12381510586941
• 21330721760931 is a deficient number, because the sum of its proper divisors (12381510586941) is less than itself. Its deficiency is 8949211173990

Bases of 21330721760931

• Binary: 100110110011001110010000101111110011010100011₂
• Hexadecimal: 0x13667217E6A3
• Base-36: 7K774ZRMR

Squares and roots of 21330721760931

• 21330721760931 squared (21330721760931²) is 454999690842255301517986761
• 21330721760931 cubed (21330721760931³) is 9705471806665772599739220919967865034491
• The square root of 21330721760931 is 4618519.4338587555
• The cube root of 21330721760931 is 27733.3192008607

Scales and comparisons

• 21,330,721,760,931 seconds is equal to 678,250 years, 50 weeks, 3 days, 17 hours, 8 minutes, 51 seconds.
• To count from 1 to 21,330,721,760,931 would take you about one million, six hundred ninety-five thousand, six hundred twenty-seven 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 21330721760931 cubic inches would be around 2311.1 feet tall.

Recreational maths with 21330721760931

• 21330721760931 backwards is 13906712703312
• The number of decimal digits it has is: 14
• The sum of 21330721760931's digits is 45
• More coming soon!