42420378

Names of 42420378

• Cardinal: 42420378 can be written as Forty-two million, four hundred twenty thousand, three hundred seventy-eight.

Scientific notation

• Scientific notation: 4.2420378 × 10⁷

Factors of 42420378

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1045

Divisors of 42420378

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 11 13 14 21 22 26 33 39 42 49 66 77 78 91 98 143 147 154 182 231 273 286 294 429 462 539 546 637 858 1001 1009 1078 1274 1617 1911 2002 2018 3003 3027 3234 3822 6006 6054 7007 7063 11099 13117 14014 14126 21021 21189 22198 26234 33297 39351 42042 42378 49441 66594 77693 78702 91819 98882 144287 148323 155386 183638 233079 275457 288574 296646 432861 466158 543851 550914 642733 865722 1010009 1087702 1285466 1631553 1928199 2020018 3030027 3263106 3856398 6060054 7070063 14140126 21210189 42420378
• Sum of all divisors σ(n): 116061120
• Sum of proper divisors (its aliquot sum) s(n): 73640742
• 42420378 is an abundant number, because the sum of its proper divisors (73640742) is greater than itself. Its abundance is 31220364

Bases of 42420378

• Binary: 10100001110100100010011010₂
• Hexadecimal: 0x287489A
• Base-36: P97RU

Squares and roots of 42420378

• 42420378 squared (42420378²) is 1799488469662884
• 42420378 cubed (42420378³) is 76334981089741071850152
• The square root of 42420378 is 6513.0928137101
• The cube root of 42420378 is 348.7585350103

Scales and comparisons

• 42,420,378 seconds is equal to 1 year, 18 weeks, 23 hours, 26 minutes, 18 seconds.
• To count from 1 to 42,420,378 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 42420378 cubic inches would be around 29.1 feet tall.

Recreational maths with 42420378

• 42420378 backwards is 87302424
• The number of decimal digits it has is: 8
• The sum of 42420378's digits is 30
• More coming soon!