21330251981440

Names of 21330251981440

• Cardinal: 21330251981440 can be written as Twenty-one trillion, three hundred thirty billion, two hundred fifty-one million, nine hundred eighty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.133025198144 × 10¹³

Factors of 21330251981440

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 182568

Divisors of 21330251981440

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 182561 365122 730244 912805 1460488 1825610 2920976 3651220 5841952 7302440 11683904 14604880 23367808 29209760 58419520 116839040 33328518721 66657037442 133314074884 166642593605 266628149768 333285187210 533256299536 666570374420 1066512599072 1333140748840 2133025198144 2666281497680 4266050396288 5332562995360 10665125990720 21330251981440
• Sum of all divisors σ(n): 50992912962990
• Sum of proper divisors (its aliquot sum) s(n): 29662660981550
• 21330251981440 is an abundant number, because the sum of its proper divisors (29662660981550) is greater than itself. Its abundance is 8332409000110

Bases of 21330251981440

• Binary: 100110110011001010110000101111010001010000000₂
• Hexadecimal: 0x13665617A280
• Base-36: 7K6ZDARGG

Squares and roots of 21330251981440

• 21330251981440 squared (21330251981440²) is 454979649591725046104473600
• 21330251981440 cubed (21330251981440³) is 9704830572218770051697623359648169984000
• The square root of 21330251981440 is 4618468.5753439957
• The cube root of 21330251981440 is 27733.1156034333

Scales and comparisons

• 21,330,251,981,440 seconds is equal to 678,236 years, 1 week, 5 days, 10 hours, 50 minutes, 40 seconds.
• To count from 1 to 21,330,251,981,440 would take you about one million, six hundred ninety-five thousand, five hundred ninety 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 21330251981440 cubic inches would be around 2311.1 feet tall.

Recreational maths with 21330251981440

• 21330251981440 backwards is 04418915203312
• The number of decimal digits it has is: 14
• The sum of 21330251981440's digits is 43
• More coming soon!