21421376512

Names of 21421376512

• Cardinal: 21421376512 can be written as Twenty-one billion, four hundred twenty-one million, three hundred seventy-six thousand, five hundred twelve.

Scientific notation

• Scientific notation: 2.1421376512 × 10¹⁰

Factors of 21421376512

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1426

Divisors of 21421376512

• Number of divisors d(n): 66
• Complete list of divisors:
  1 2 4 8 16 32 64 127 128 254 256 508 512 1016 1024 1297 2032 2594 4064 5188 8128 10376 16129 16256 20752 32258 32512 41504 64516 65024 83008 129032 130048 164719 166016 258064 329438 332032 516128 658876 664064 1032256 1317752 1328128 2064512 2635504 4129024 5271008 8258048 10542016 16516096 20919313 21084032 41838626 42168064 83677252 84336128 167354504 168672256 334709008 669418016 1338836032 2677672064 5355344128 10710688256 21421376512
• Sum of all divisors σ(n): 43194946542
• Sum of proper divisors (its aliquot sum) s(n): 21773570030
• 21421376512 is an abundant number, because the sum of its proper divisors (21773570030) is greater than itself. Its abundance is 352193518

Bases of 21421376512

• Binary: 10011111100110100000100010000000000₂
• Hexadecimal: 0x4FCD04400
• Base-36: 9U9QFWG

Squares and roots of 21421376512

• 21421376512 squared (21421376512²) is 458875371668865286144
• 21421376512 cubed (21421376512³) is 9829742108602701082297240649728
• The square root of 21421376512 is 146360.4335604399
• The cube root of 21421376512 is 2777.2552188721

Scales and comparisons

• 21,421,376,512 seconds is equal to 681 years, 6 weeks, 6 days, 14 hours, 21 minutes, 52 seconds.
• To count from 1 to 21,421,376,512 would take you about one thousand, three hundred sixty-two 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 21421376512 cubic inches would be around 231.4 feet tall.

Recreational maths with 21421376512

• 21421376512 backwards is 21567312412
• The number of decimal digits it has is: 11
• The sum of 21421376512's digits is 34
• More coming soon!