21388085794559106

Names of 21388085794559106

• Cardinal: 21388085794559106 can be written as Twenty-one quadrillion, three hundred eighty-eight trillion, eighty-five billion, seven hundred ninety-four million, five hundred fifty-nine thousand, one hundred six.

Scientific notation

• Scientific notation: 2.1388085794559106 × 10¹⁶

Factors of 21388085794559106

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 436366870980

Divisors of 21388085794559106

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 42 63 126 389 778 1167 2334 2723 3501 5446 7002 8169 16338 24507 49014 436366870579 872733741158 1309100611737 2618201223474 3054568094053 3927301835211 6109136188106 7854603670422 9163704282159 18327408564318 27491112846477 54982225692954 169746712655231 339493425310462 509240137965693 1018480275931386 1188226988586617 1527720413897079 2376453977173234 3055440827794158 3564680965759851 7129361931519702 10694042897279553 21388085794559106
• Sum of all divisors σ(n): 53097120812174400
• Sum of proper divisors (its aliquot sum) s(n): 31709035017615294
• 21388085794559106 is an abundant number, because the sum of its proper divisors (31709035017615294) is greater than itself. Its abundance is 10320949223056188

Bases of 21388085794559106

• Binary: 1001011111111000101100111001000001101011101010010000010₂
• Hexadecimal: 0x4BFC59C835D482
• Base-36: 5ULFYYY2IKI

Squares and roots of 21388085794559106

• 21388085794559106 squared (21388085794559106²) is 457450213955421024628192927519236
• 21388085794559106 cubed (21388085794559106³) is 9783984422817964125462936912361213588266953963016
• The square root of 21388085794559106 is 146246660.7979789261
• The cube root of 21388085794559106 is 277581.5772696061

Scales and comparisons

• 21,388,085,794,559,106 seconds is equal to 680,074,970 years, 29 weeks, 5 days, 21 hours, 5 minutes, 6 seconds.
• To count from 1 to 21,388,085,794,559,106 would take you about two billion, forty million, two hundred twenty-four thousand, nine hundred eleven 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 21388085794559106 cubic inches would be around 23131.8 feet tall.

Recreational maths with 21388085794559106

• 21388085794559106 backwards is 60195549758088312
• The number of decimal digits it has is: 17
• The sum of 21388085794559106's digits is 81
• More coming soon!