649442042

Names of 649442042

• Cardinal: 649442042 can be written as Six hundred forty-nine million, four hundred forty-two thousand and forty-two.

Scientific notation

• Scientific notation: 6.49442042 × 10⁸

Factors of 649442042

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 109824

Divisors of 649442042

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 3041 6082 106781 213562 324721021 649442042
• Sum of all divisors σ(n): 974492532
• Sum of proper divisors (its aliquot sum) s(n): 325050490
• 649442042 is a deficient number, because the sum of its proper divisors (325050490) is less than itself. Its deficiency is 324391552

Bases of 649442042

• Binary: 100110101101011011001011111010₂
• Hexadecimal: 0x26B5B2FA
• Base-36: AQNSOQ

Squares and roots of 649442042

• 649442042 squared (649442042²) is 421774965917129764
• 649442042 cubed (649442042³) is 273918395129701156711138088
• The square root of 649442042 is 25484.1527620597
• The cube root of 649442042 is 865.9911753923

Scales and comparisons

• 649,442,042 seconds is equal to 20 years, 33 weeks, 5 days, 16 hours, 34 minutes, 2 seconds.
• To count from 1 to 649,442,042 would take you about thirty 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 649442042 cubic inches would be around 72.2 feet tall.

Recreational maths with 649442042

• 649442042 backwards is 240244946
• The number of decimal digits it has is: 9
• The sum of 649442042's digits is 35
• More coming soon!