681407

Names of 681407

• Cardinal: 681407 can be written as Six hundred eighty-one thousand, four hundred seven.

Scientific notation

• Scientific notation: 6.81407 × 10⁵

Factors of 681407

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 681407

Divisors of 681407

• Number of divisors d(n): 2
• Complete list of divisors:
  1 681407
• Sum of all divisors σ(n): 681408
• Sum of proper divisors (its aliquot sum) s(n): 1
• 681407 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 681406

Bases of 681407

• Binary: 10100110010110111111₂
• Hexadecimal: 0xA65BF
• Base-36: ELRZ

Squares and roots of 681407

• 681407 squared (681407²) is 464315499649
• 681407 cubed (681407³) is 316387831669326143
• The square root of 681407 is 825.4738033397
• The cube root of 681407 is 87.9972020461

Scales and comparisons

• 681,407 seconds is equal to 1 week, 21 hours, 16 minutes, 47 seconds.
• To count from 1 to 681,407 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 681407 cubic inches would be around 7.3 feet tall.

Recreational maths with 681407

• 681407 backwards is 704186
• 681407 is a twin prime! Its twin is 681409
• The number of decimal digits it has is: 6
• The sum of 681407's digits is 26
• More coming soon!