402978049

Names of 402978049

• Cardinal: 402978049 can be written as Four hundred two million, nine hundred seventy-eight thousand and forty-nine.

Scientific notation

• Scientific notation: 4.02978049 × 10⁸

Factors of 402978049

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 9279

Divisors of 402978049

• Number of divisors d(n): 8
• Complete list of divisors:
  1 19 4153 5107 78907 97033 21209371 402978049
• Sum of all divisors σ(n): 424372640
• Sum of proper divisors (its aliquot sum) s(n): 21394591
• 402978049 is a deficient number, because the sum of its proper divisors (21394591) is less than itself. Its deficiency is 381583458

Bases of 402978049

• Binary: 11000000001001111010100000001₂
• Hexadecimal: 0x1804F501
• Base-36: 6NX7UP

Squares and roots of 402978049

• 402978049 squared (402978049²) is 162391307975846401
• 402978049 cubed (402978049³) is 65440132462664721798651649
• The square root of 402978049 is 20074.3131638419
• The cube root of 402978049 is 738.6303182293

Scales and comparisons

• 402,978,049 seconds is equal to 12 years, 42 weeks, 2 days, 2 hours, 20 minutes, 49 seconds.
• To count from 1 to 402,978,049 would take you about nineteen years!

  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 402978049 cubic inches would be around 61.6 feet tall.

Recreational maths with 402978049

• 402978049 backwards is 940879204
• The number of decimal digits it has is: 9
• The sum of 402978049's digits is 43
• More coming soon!