42129450

Names of 42129450

• Cardinal: 42129450 can be written as Forty-two million, one hundred twenty-nine thousand, four hundred fifty.

Scientific notation

• Scientific notation: 4.212945 × 10⁷

Factors of 42129450

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2858

Divisors of 42129450

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 25 27 30 33 45 50 54 55 66 75 90 99 110 135 150 165 198 225 270 275 297 330 450 495 550 594 675 825 990 1350 1485 1650 2475 2837 2970 4950 5674 7425 8511 14185 14850 17022 25533 28370 31207 42555 51066 62414 70925 76599 85110 93621 127665 141850 153198 156035 187242 212775 255330 280863 312070 382995 425550 468105 561726 638325 765990 780175 842589 936210 1276650 1404315 1560350 1685178 1914975 2340525 2808630 3829950 4212945 4681050 7021575 8425890 14043150 21064725 42129450
• Sum of all divisors σ(n): 126688320
• Sum of proper divisors (its aliquot sum) s(n): 84558870
• 42129450 is an abundant number, because the sum of its proper divisors (84558870) is greater than itself. Its abundance is 42429420

Bases of 42129450

• Binary: 10100000101101100000101010₂
• Hexadecimal: 0x282D82A
• Base-36: P2ZAI

Squares and roots of 42129450

• 42129450 squared (42129450²) is 1774890557302500
• 42129450 cubed (42129450³) is 74775162989347808625000
• The square root of 42129450 is 6490.7202990115
• The cube root of 42129450 is 347.9594185735

Scales and comparisons

• 42,129,450 seconds is equal to 1 year, 17 weeks, 4 days, 14 hours, 37 minutes, 30 seconds.
• To count from 1 to 42,129,450 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 42129450 cubic inches would be around 29 feet tall.

Recreational maths with 42129450

• 42129450 backwards is 05492124
• 42129450 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 42129450's digits is 27
• More coming soon!