161211083121

Names of 161211083121

• Cardinal: 161211083121 can be written as One hundred sixty-one billion, two hundred eleven million, eighty-three thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 1.61211083121 × 10¹¹

Factors of 161211083121

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 37

Divisors of 161211083121

• Number of divisors d(n): 63
• Complete list of divisors:
  1 3 9 11 23 33 69 99 121 207 253 363 529 759 1089 1587 2277 2783 4761 5819 8349 12167 17457 25047 36501 52371 64009 109503 133837 192027 279841 401511 576081 839523 1204533 1472207 2518569 3078251 4416621 6436343 9234753 13249863 19309029 27704259 33860761 57927087 70799773 101582283 148035889 212399319 304746849 444107667 637197957 778797503 1332323001 1628394779 2336392509 4885184337 7009177527 14655553011 17912342569 53737027707 161211083121
• Sum of all divisors σ(n): 267588327097
• Sum of proper divisors (its aliquot sum) s(n): 106377243976
• 161211083121 is a deficient number, because the sum of its proper divisors (106377243976) is less than itself. Its deficiency is 54833839145

Bases of 161211083121

• Binary: 10010110001000111011011110100101110001₂
• Hexadecimal: 0x2588EDE971
• Base-36: 2224WZU9

Squares and roots of 161211083121

• 161211083121 squared (161211083121²) is 25989013321045971100641
• 161211083121 cubed (161211083121³) is 4189716986731918305767600107380561
• 161211083121 is a perfect square number. Its square root is 401511
• The cube root of 161211083121 is 5442.4982569159
• Being both a perfect square and a perfect cube, 161211083121 is also a perfect sixth number.

Scales and comparisons

• 161,211,083,121 seconds is equal to 5,126 years, 5 days, 25 minutes, 21 seconds.
• To count from 1 to 161,211,083,121 would take you about ten thousand, two hundred fifty-two 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 161211083121 cubic inches would be around 453.5 feet tall.

Recreational maths with 161211083121

• 161211083121 backwards is 121380112161
• The number of decimal digits it has is: 12
• The sum of 161211083121's digits is 27
• More coming soon!