4001978

Names of 4001978

• Cardinal: 4001978 can be written as Four million, one thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 4.001978 × 10⁶

Factors of 4001978

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 2000991

Divisors of 4001978

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 2000989 4001978
• Sum of all divisors σ(n): 6002970
• Sum of proper divisors (its aliquot sum) s(n): 2000992
• 4001978 is a deficient number, because the sum of its proper divisors (2000992) is less than itself. Its deficiency is 2000986

Bases of 4001978

• Binary: 1111010001000010111010₂
• Hexadecimal: 0x3D10BA
• Base-36: 2DRY2

Squares and roots of 4001978

• 4001978 squared (4001978²) is 16015827912484
• 4001978 cubed (4001978³) is 64094990957546893352
• The square root of 4001978 is 2000.4944388825
• The cube root of 4001978 is 158.7662665457

Scales and comparisons

• 4,001,978 seconds is equal to 6 weeks, 4 days, 7 hours, 39 minutes, 38 seconds.
• To count from 1 to 4,001,978 would take you about nine weeks!

  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 4001978 cubic inches would be around 13.2 feet tall.

Recreational maths with 4001978

• 4001978 backwards is 8791004
• The number of decimal digits it has is: 7
• The sum of 4001978's digits is 29
• More coming soon!