21997589376

Names of 21997589376

• Cardinal: 21997589376 can be written as Twenty-one billion, nine hundred ninety-seven million, five hundred eighty-nine thousand, three hundred seventy-six.

Scientific notation

• Scientific notation: 2.1997589376 × 10¹⁰

Factors of 21997589376

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8183639

Divisors of 21997589376

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 336 384 448 672 896 1344 2688 8183627 16367254 24550881 32734508 49101762 57285389 65469016 98203524 114570778 130938032 171856167 196407048 229141556 261876064 343712334 392814096 458283112 523752128 687424668 785628192 916566224 1047504256 1374849336 1571256384 1833132448 2749698672 3142512768 3666264896 5499397344 7332529792 10998794688 21997589376
• Sum of all divisors σ(n): 66778404480
• Sum of proper divisors (its aliquot sum) s(n): 44780815104
• 21997589376 is an abundant number, because the sum of its proper divisors (44780815104) is greater than itself. Its abundance is 22783225728

Bases of 21997589376

• Binary: 10100011111001010001001001110000000₂
• Hexadecimal: 0x51F289380
• Base-36: A3SSOLC

Squares and roots of 21997589376

• 21997589376 squared (21997589376²) is 483893938355108069376
• 21997589376 cubed (21997589376³) is 10644500157471124182237368549376
• The square root of 21997589376 is 148315.8433074497
• The cube root of 21997589376 is 2801.9369835343

Scales and comparisons

• 21,997,589,376 seconds is equal to 699 years, 23 weeks, 4 days, 17 hours, 29 minutes, 36 seconds.
• To count from 1 to 21,997,589,376 would take you about one thousand, three hundred ninety-eight 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 21997589376 cubic inches would be around 233.5 feet tall.

Recreational maths with 21997589376

• 21997589376 backwards is 67398579912
• The number of decimal digits it has is: 11
• The sum of 21997589376's digits is 66
• More coming soon!