42157

Names of 42157

• Cardinal: 42157 can be written as Forty-two thousand, one hundred fifty-seven.

Scientific notation

• Scientific notation: 4.2157 × 10⁴

Factors of 42157

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 42157

Divisors of 42157

• Number of divisors d(n): 2
• Complete list of divisors:
  1 42157
• Sum of all divisors σ(n): 42158
• Sum of proper divisors (its aliquot sum) s(n): 1
• 42157 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 42156

Bases of 42157

• Binary: 1010010010101101₂
• Hexadecimal: 0xA4AD
• Base-36: WJ1

Squares and roots of 42157

• 42157 squared (42157²) is 1777212649
• 42157 cubed (42157³) is 74921953643893
• The square root of 42157 is 205.3216988045
• The cube root of 42157 is 34.8035249875

Scales and comparisons

• 42,157 seconds is equal to 11 hours, 42 minutes, 37 seconds.
• To count from 1 to 42,157 would take you about eleven hours.

  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 42157 cubic inches would be around 2.9 feet tall.

Recreational maths with 42157

• 42157 backwards is 75124
• The number of decimal digits it has is: 5
• The sum of 42157's digits is 19
• More coming soon!