82161239742

Names of 82161239742

• Cardinal: 82161239742 can be written as Eighty-two billion, one hundred sixty-one million, two hundred thirty-nine thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 8.2161239742 × 10¹⁰

Factors of 82161239742

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 585422

Divisors of 82161239742

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 9 18 29 58 87 174 261 269 522 538 807 1614 2421 4842 7801 15602 23403 46806 70209 140418 585119 1170238 1755357 3510714 5266071 10532142 16968451 33936902 50905353 101810706 152716059 157397011 305432118 314794022 472191033 944382066 1416573099 2833146198 4564513319 9129026638 13693539957 27387079914 41080619871 82161239742
• Sum of all divisors σ(n): 184839408000
• Sum of proper divisors (its aliquot sum) s(n): 102678168258
• 82161239742 is an abundant number, because the sum of its proper divisors (102678168258) is greater than itself. Its abundance is 20516928516

Bases of 82161239742

• Binary: 1001100100001001100010000011010111110₂
• Hexadecimal: 0x13213106BE
• Base-36: 11QSOIBI

Squares and roots of 82161239742

• 82161239742 squared (82161239742²) is 6750469315942400226564
• 82161239742 cubed (82161239742³) is 554626927838158287677639920906488
• The square root of 82161239742 is 286637.8198040167
• The cube root of 82161239742 is 4347.3271948451

Scales and comparisons

• 82,161,239,742 seconds is equal to 2,612 years, 24 weeks, 4 days, 6 hours, 35 minutes, 42 seconds.
• To count from 1 to 82,161,239,742 would take you about five thousand, two hundred twenty-four 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 82161239742 cubic inches would be around 362.3 feet tall.

Recreational maths with 82161239742

• 82161239742 backwards is 24793216128
• The number of decimal digits it has is: 11
• The sum of 82161239742's digits is 45
• More coming soon!