820018807908399

Names of 820018807908399

• Cardinal: 820018807908399 can be written as Eight hundred twenty trillion, eighteen billion, eight hundred seven million, nine hundred eight thousand, three hundred ninety-nine.

Scientific notation

• Scientific notation: 8.20018807908399 × 10¹⁴

Factors of 820018807908399

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1068917

Divisors of 820018807908399

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 11 29 33 87 99 261 319 957 2871 533177 535697 1599531 1607091 4798593 4821273 5864947 5892667 15462133 15535213 17594841 17678001 46386399 46605639 52784523 53034003 139159197 139816917 170083463 170887343 510250389 512662029 1530751167 1537986087 285621319369 856863958107 2570591874321 3141834513059 8283018261701 9425503539177 24849054785103 28276510617531 74547164355309 91113200878711 273339602636133 820018807908399
• Sum of all divisors σ(n): 1336712776981920
• Sum of proper divisors (its aliquot sum) s(n): 516693969073521
• 820018807908399 is a deficient number, because the sum of its proper divisors (516693969073521) is less than itself. Its deficiency is 303324838834878

Bases of 820018807908399

• Binary: 10111010011100110110000001110000010010100000101111₂
• Hexadecimal: 0x2E9CD81C1282F
• Base-36: 82O7FTYXPR

Squares and roots of 820018807908399

• 820018807908399 squared (820018807908399²) is 672430845323511778345174743201
• 820018807908399 cubed (820018807908399³) is 551405940183023164990091403063193772756045199
• The square root of 820018807908399 is 28635970.5249952895
• The cube root of 820018807908399 is 93599.7318363973

Scales and comparisons

• 820,018,807,908,399 seconds is equal to 26,074,061 years, 31 weeks, 3 days, 20 hours, 46 minutes, 39 seconds.
• To count from 1 to 820,018,807,908,399 would take you about sixty-five million, one hundred eighty-five thousand, one hundred fifty-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 820018807908399 cubic inches would be around 7800 feet tall.

Recreational maths with 820018807908399

• 820018807908399 backwards is 993809708810028
• The number of decimal digits it has is: 15
• The sum of 820018807908399's digits is 72
• More coming soon!