1216881

Names of 1216881

• Cardinal: 1216881 can be written as One million, two hundred sixteen thousand, eight hundred eighty-one.

Scientific notation

• Scientific notation: 1.216881 × 10⁶

Factors of 1216881

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 135212

Divisors of 1216881

• Number of divisors d(n): 6
• Complete list of divisors:
  1 3 9 135209 405627 1216881
• Sum of all divisors σ(n): 1757730
• Sum of proper divisors (its aliquot sum) s(n): 540849
• 1216881 is a deficient number, because the sum of its proper divisors (540849) is less than itself. Its deficiency is 676032

Bases of 1216881

• Binary: 100101001000101110001₂
• Hexadecimal: 0x129171
• Base-36: Q2Y9

Squares and roots of 1216881

• 1216881 squared (1216881²) is 1480799368161
• 1216881 cubed (1216881³) is 1801956615927125841
• The square root of 1216881 is 1103.1232931999
• The cube root of 1216881 is 106.7618367201

Scales and comparisons

• 1,216,881 seconds is equal to 2 weeks, 2 hours, 1 minute, 21 seconds.
• To count from 1 to 1,216,881 would take you about three weeks!

  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 1216881 cubic inches would be around 8.9 feet tall.

Recreational maths with 1216881

• 1216881 backwards is 1886121
• The number of decimal digits it has is: 7
• The sum of 1216881's digits is 27
• More coming soon!