42857724

Names of 42857724

• Cardinal: 42857724 can be written as Forty-two million, eight hundred fifty-seven thousand, seven hundred twenty-four.

Scientific notation

• Scientific notation: 4.2857724 × 10⁷

Factors of 42857724

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3044

Divisors of 42857724

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 169 182 273 338 364 507 546 676 1014 1092 1183 2028 2366 3019 3549 4732 6038 7098 9057 12076 14196 18114 21133 36228 39247 42266 63399 78494 84532 117741 126798 156988 235482 253596 274729 470964 510211 549458 824187 1020422 1098916 1530633 1648374 2040844 3061266 3296748 3571477 6122532 7142954 10714431 14285908 21428862 42857724
• Sum of all divisors σ(n): 123795840
• Sum of proper divisors (its aliquot sum) s(n): 80938116
• 42857724 is an abundant number, because the sum of its proper divisors (80938116) is greater than itself. Its abundance is 38080392

Bases of 42857724

• Binary: 10100011011111010011111100₂
• Hexadecimal: 0x28DF4FC
• Base-36: PIL8C

Squares and roots of 42857724

• 42857724 squared (42857724²) is 1836784506460176
• 42857724 cubed (42857724³) is 78720403425346439999424
• The square root of 42857724 is 6546.5810924481
• The cube root of 42857724 is 349.9529841607

Scales and comparisons

• 42,857,724 seconds is equal to 1 year, 18 weeks, 6 days, 55 minutes, 24 seconds.
• To count from 1 to 42,857,724 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 42857724 cubic inches would be around 29.2 feet tall.

Recreational maths with 42857724

• 42857724 backwards is 42775824
• 42857724 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 42857724's digits is 39
• More coming soon!