1045

Names of 1045

• Cardinal: 1045 can be written as One thousand and forty-five.

Scientific notation

• Scientific notation: 1.045 × 10³

Factors of 1045

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 35

Divisors of 1045

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 11 19 55 95 209 1045
• Sum of all divisors σ(n): 1440
• Sum of proper divisors (its aliquot sum) s(n): 395
• 1045 is a deficient number, because the sum of its proper divisors (395) is less than itself. Its deficiency is 650

Bases of 1045

• Binary: 10000010101₂
• Hexadecimal: 0x415
• Base-36: T1

Squares and roots of 1045

• 1045 squared (1045²) is 1092025
• 1045 cubed (1045³) is 1141166125
• The square root of 1045 is 32.3264597503
• The cube root of 1045 is 10.1478046163

Scales and comparisons

• 1,045 seconds is equal to 17 minutes, 25 seconds.
• To count from 1 to 1,045 would take you about seventeen 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 1045 cubic inches would be around 0.8 feet tall.

Recreational maths with 1045

• 1045 backwards is 5401
• The number of decimal digits it has is: 4
• The sum of 1045's digits is 10
• More coming soon!