42838125

Names of 42838125

• Cardinal: 42838125 can be written as Forty-two million, eight hundred thirty-eight thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 4.2838125 × 10⁷

Factors of 42838125

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 117

Divisors of 42838125

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 5 11 15 25 31 33 55 67 75 93 125 155 165 201 275 335 341 375 465 625 737 775 825 1005 1023 1375 1675 1705 1875 2077 2211 2325 3685 3875 4125 5025 5115 6231 6875 8375 8525 10385 11055 11625 18425 19375 20625 22847 25125 25575 31155 41875 42625 51925 55275 58125 68541 92125 114235 125625 127875 155775 213125 259625 276375 342705 460625 571175 639375 778875 1298125 1381875 1713525 2855875 3894375 8567625 14279375 42838125
• Sum of all divisors σ(n): 81573888
• Sum of proper divisors (its aliquot sum) s(n): 38735763
• 42838125 is a deficient number, because the sum of its proper divisors (38735763) is less than itself. Its deficiency is 4102362

Bases of 42838125

• Binary: 10100011011010100001101101₂
• Hexadecimal: 0x28DA86D
• Base-36: PI63X

Squares and roots of 42838125

• 42838125 squared (42838125²) is 1835104953515625
• 42838125 cubed (42838125³) is 78612455386821533203125
• The square root of 42838125 is 6545.0840330739
• The cube root of 42838125 is 349.8996310841

Scales and comparisons

• 42,838,125 seconds is equal to 1 year, 18 weeks, 5 days, 19 hours, 28 minutes, 45 seconds.
• To count from 1 to 42,838,125 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 42838125 cubic inches would be around 29.2 feet tall.

Recreational maths with 42838125

• 42838125 backwards is 52183824
• 42838125 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 42838125's digits is 33
• More coming soon!