21357669120

Names of 21357669120

• Cardinal: 21357669120 can be written as Twenty-one billion, three hundred fifty-seven million, six hundred sixty-nine thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.135766912 × 10¹⁰

Factors of 21357669120

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5561903

Divisors of 21357669120

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 640 768 960 1280 1920 3840 5561893 11123786 16685679 22247572 27809465 33371358 44495144 55618930 66742716 83428395 88990288 111237860 133485432 166856790 177980576 222475720 266970864 333713580 355961152 444951440 533941728 667427160 711922304 889902880 1067883456 1334854320 1423844608 1779805760 2135766912 2669708640 3559611520 4271533824 5339417280 7119223040 10678834560 21357669120
• Sum of all divisors σ(n): 68211068016
• Sum of proper divisors (its aliquot sum) s(n): 46853398896
• 21357669120 is an abundant number, because the sum of its proper divisors (46853398896) is greater than itself. Its abundance is 25495729776

Bases of 21357669120

• Binary: 10011111001000001000010101100000000₂
• Hexadecimal: 0x4F9042B00
• Base-36: 9T7SYYO

Squares and roots of 21357669120

• 21357669120 squared (21357669120²) is 456150030239401574400
• 21357669120 cubed (21357669120³) is 9742301414931133212842262528000
• The square root of 21357669120 is 146142.6327941301
• The cube root of 21357669120 is 2774.4992899043

Scales and comparisons

• 21,357,669,120 seconds is equal to 679 years, 5 weeks, 4 days, 5 hours, 52 minutes.
• To count from 1 to 21,357,669,120 would take you about one thousand, three hundred fifty-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 21357669120 cubic inches would be around 231.2 feet tall.

Recreational maths with 21357669120

• 21357669120 backwards is 02196675312
• The number of decimal digits it has is: 11
• The sum of 21357669120's digits is 42
• More coming soon!