20691321984

Names of 20691321984

• Cardinal: 20691321984 can be written as Twenty billion, six hundred ninety-one million, three hundred twenty-one thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.0691321984 × 10¹⁰

Factors of 20691321984

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 22963

Divisors of 20691321984

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 384 576 811 1152 1622 2433 3244 4866 6488 7299 9732 12976 14598 19464 22147 25952 29196 38928 44294 51904 58392 66441 77856 88588 103808 116784 132882 155712 177176 199323 233568 265764 311424 354352 398646 467136 531528 708704 797292 934272 1063056 1417408 1594584 2126112 2834816 3189168 4252224 6378336 8504448 12756672 17961217 25513344 35922434 53883651 71844868 107767302 143689736 161650953 215534604 287379472 323301906 431069208 574758944 646603812 862138416 1149517888 1293207624 1724276832 2299035776 2586415248 3448553664 5172830496 6897107328 10345660992 20691321984
• Sum of all divisors σ(n): 59617543440
• Sum of proper divisors (its aliquot sum) s(n): 38926221456
• 20691321984 is an abundant number, because the sum of its proper divisors (38926221456) is greater than itself. Its abundance is 18234899472

Bases of 20691321984

• Binary: 10011010001010011001000010010000000₂
• Hexadecimal: 0x4D14C8480
• Base-36: 9I72U80

Squares and roots of 20691321984

• 20691321984 squared (20691321984²) is 428130805445561696256
• 20691321984 cubed (20691321984³) is 8858592346743377640970103291904
• The square root of 20691321984 is 143844.7843475737
• The cube root of 20691321984 is 2745.3396320983

Scales and comparisons

• 20,691,321,984 seconds is equal to 657 years, 47 weeks, 5 days, 21 hours, 26 minutes, 24 seconds.
• To count from 1 to 20,691,321,984 would take you about one thousand, three hundred fifteen 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 20691321984 cubic inches would be around 228.8 feet tall.

Recreational maths with 20691321984

• 20691321984 backwards is 48912319602
• The number of decimal digits it has is: 11
• The sum of 20691321984's digits is 45
• More coming soon!