2638

Names of 2638

• Cardinal: 2638 can be written as Two thousand, six hundred thirty-eight.

Scientific notation

• Scientific notation: 2.638 × 10³

Factors of 2638

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1321

Divisors of 2638

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 1319 2638
• Sum of all divisors σ(n): 3960
• Sum of proper divisors (its aliquot sum) s(n): 1322
• 2638 is a deficient number, because the sum of its proper divisors (1322) is less than itself. Its deficiency is 1316

Bases of 2638

• Binary: 101001001110₂
• Hexadecimal: 0xA4E
• Base-36: 21A

Squares and roots of 2638

• 2638 squared (2638²) is 6959044
• 2638 cubed (2638³) is 18357958072
• The square root of 2638 is 51.3614641535
• The cube root of 2638 is 13.8173554655

Scales and comparisons

• 2,638 seconds is equal to 43 minutes, 58 seconds.
• To count from 1 to 2,638 would take you about forty-three minutes.

  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 2638 cubic inches would be around 1.2 feet tall.

Recreational maths with 2638

• 2638 backwards is 8362
• The number of decimal digits it has is: 4
• The sum of 2638's digits is 19
• More coming soon!