42991657

Names of 42991657

• Cardinal: 42991657 can be written as Forty-two million, nine hundred ninety-one thousand, six hundred fifty-seven.

Scientific notation

• Scientific notation: 4.2991657 × 10⁷

Factors of 42991657

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 61739

Divisors of 42991657

• Number of divisors d(n): 8
• Complete list of divisors:
  1 17 41 697 61681 1048577 2528921 42991657
• Sum of all divisors σ(n): 46631592
• Sum of proper divisors (its aliquot sum) s(n): 3639935
• 42991657 is a deficient number, because the sum of its proper divisors (3639935) is less than itself. Its deficiency is 39351722

Bases of 42991657

• Binary: 10100100000000000000101001₂
• Hexadecimal: 0x2900029
• Base-36: PLGKP

Squares and roots of 42991657

• 42991657 squared (42991657²) is 1848282571605649
• 42991657 cubed (42991657³) is 79460730357548001070393
• The square root of 42991657 is 6556.8023456561
• The cube root of 42991657 is 350.3171465499

Scales and comparisons

• 42,991,657 seconds is equal to 1 year, 19 weeks, 14 hours, 7 minutes, 37 seconds.
• To count from 1 to 42,991,657 would take you about two 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 42991657 cubic inches would be around 29.2 feet tall.

Recreational maths with 42991657

• 42991657 backwards is 75619924
• The number of decimal digits it has is: 8
• The sum of 42991657's digits is 43
• More coming soon!