21007170338

Names of 21007170338

• Cardinal: 21007170338 can be written as Twenty-one billion, seven million, one hundred seventy thousand, three hundred thirty-eight.

Scientific notation

• Scientific notation: 2.1007170338 × 10¹⁰

Factors of 21007170338

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 20

Divisors of 21007170338

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 7 11 14 22 49 77 98 121 154 242 539 847 1078 1331 1694 2662 5929 9317 11858 14641 18634 29282 65219 102487 130438 161051 204974 322102 717409 1127357 1434818 1771561 2254714 3543122 7891499 12400927 15782998 19487171 24801854 38974342 86806489 136410197 173612978 214358881 272820394 428717762 954871379 1500512167 1909742758 3001024334 10503585169 21007170338
• Sum of all divisors σ(n): 40320905499
• Sum of proper divisors (its aliquot sum) s(n): 19313735161
• 21007170338 is a deficient number, because the sum of its proper divisors (19313735161) is less than itself. Its deficiency is 1693435177

Bases of 21007170338

• Binary: 10011100100000111111111101100100010₂
• Hexadecimal: 0x4E41FFB22
• Base-36: 9NF4KDE

Squares and roots of 21007170338

• 21007170338 squared (21007170338²) is 441301205609747034244
• 21007170338 cubed (21007170338³) is 9270489596608717101454027054472
• The square root of 21007170338 is 144938.5053669313
• The cube root of 21007170338 is 2759.2381472979

Scales and comparisons

• 21,007,170,338 seconds is equal to 667 years, 50 weeks, 13 hours, 5 minutes, 38 seconds.
• To count from 1 to 21,007,170,338 would take you about one thousand, three hundred thirty-five 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 21007170338 cubic inches would be around 229.9 feet tall.

Recreational maths with 21007170338

• 21007170338 backwards is 83307170012
• The number of decimal digits it has is: 11
• The sum of 21007170338's digits is 32
• More coming soon!