400013

Names of 400013

• Cardinal: 400013 can be written as Four hundred thousand and thirteen.

Scientific notation

• Scientific notation: 4.00013 × 10⁵

Factors of 400013

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1266

Divisors of 400013

• Number of divisors d(n): 4
• Complete list of divisors:
  1 607 659 400013
• Sum of all divisors σ(n): 401280
• Sum of proper divisors (its aliquot sum) s(n): 1267
• 400013 is a deficient number, because the sum of its proper divisors (1267) is less than itself. Its deficiency is 398746

Bases of 400013

• Binary: 1100001101010001101₂
• Hexadecimal: 0x61A8D
• Base-36: 8KNH

Squares and roots of 400013

• 400013 squared (400013²) is 160010400169
• 400013 cubed (400013³) is 64006240202802197
• The square root of 400013 is 632.4658093523
• The cube root of 400013 is 73.6814281709

Scales and comparisons

• 400,013 seconds is equal to 4 days, 15 hours, 6 minutes, 53 seconds.
• To count from 1 to 400,013 would take you about four days.

  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 400013 cubic inches would be around 6.1 feet tall.

Recreational maths with 400013

• 400013 backwards is 310004
• The number of decimal digits it has is: 6
• The sum of 400013's digits is 8
• More coming soon!