681994

Names of 681994

• Cardinal: 681994 can be written as Six hundred eighty-one thousand, nine hundred ninety-four.

Scientific notation

• Scientific notation: 6.81994 × 10⁵

Factors of 681994

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 8360

Divisors of 681994

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 41 82 8317 16634 340997 681994
• Sum of all divisors σ(n): 1048068
• Sum of proper divisors (its aliquot sum) s(n): 366074
• 681994 is a deficient number, because the sum of its proper divisors (366074) is less than itself. Its deficiency is 315920

Bases of 681994

• Binary: 10100110100000001010₂
• Hexadecimal: 0xA680A
• Base-36: EM8A

Squares and roots of 681994

• 681994 squared (681994²) is 465115816036
• 681994 cubed (681994³) is 317206195841655784
• The square root of 681994 is 825.8292801785
• The cube root of 681994 is 88.0224632739

Scales and comparisons

• 681,994 seconds is equal to 1 week, 21 hours, 26 minutes, 34 seconds.
• To count from 1 to 681,994 would take you about twenty-one hours!

  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 681994 cubic inches would be around 7.3 feet tall.

Recreational maths with 681994

• 681994 backwards is 499186
• The number of decimal digits it has is: 6
• The sum of 681994's digits is 37
• More coming soon!