21249311273985

Names of 21249311273985

• Cardinal: 21249311273985 can be written as Twenty-one trillion, two hundred forty-nine billion, three hundred eleven million, two hundred seventy-three thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 2.1249311273985 × 10¹³

Factors of 21249311273985

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 64114

Divisors of 21249311273985

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 15 17 51 85 255 643 1929 2113 3215 6339 9645 10565 10931 31695 32793 35921 54655 61333 107763 163965 179605 183999 306665 538815 919995 1042661 1358659 3127983 4075977 5213305 6793295 15639915 20379885 23097203 39437119 69291609 115486015 118311357 129596629 197185595 346458045 388789887 591556785 647983145 670431023 1943949435 2011293069 2203142693 3352155115 6609428079 10056465345 11015713465 33047140395 83330632447 249991897341 416653162235 1249959486705 1416620751599 4249862254797 7083103757995 21249311273985
• Sum of all divisors σ(n): 36072470423808
• Sum of proper divisors (its aliquot sum) s(n): 14823159149823
• 21249311273985 is a deficient number, because the sum of its proper divisors (14823159149823) is less than itself. Its deficiency is 6426152124162

Bases of 21249311273985

• Binary: 100110101001101111101101001100111010000000001₂
• Hexadecimal: 0x13537DA67401
• Base-36: 7J5SRAHVL

Squares and roots of 21249311273985

• 21249311273985 squared (21249311273985²) is 451533229618706023737780225
• 21249311273985 cubed (21249311273985³) is 9594770146715627633058644364470689946625
• The square root of 21249311273985 is 4609697.5252162695
• The cube root of 21249311273985 is 27697.9920407939

Scales and comparisons

• 21,249,311,273,985 seconds is equal to 675,662 years, 19 weeks, 1 day, 16 hours, 59 minutes, 45 seconds.
• To count from 1 to 21,249,311,273,985 would take you about one million, six hundred eighty-nine thousand, one hundred fifty-five 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 21249311273985 cubic inches would be around 2308.2 feet tall.

Recreational maths with 21249311273985

• 21249311273985 backwards is 58937211394212
• The number of decimal digits it has is: 14
• The sum of 21249311273985's digits is 57
• More coming soon!