42379428

Names of 42379428

• Cardinal: 42379428 can be written as Forty-two million, three hundred seventy-nine thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 4.2379428 × 10⁷

Factors of 42379428

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 222

Divisors of 42379428

• 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 91 156 182 197 273 364 394 546 591 788 1092 1182 1379 2364 2561 2758 4137 5122 5516 7683 8274 10244 15366 16548 17927 30732 35854 38809 53781 71708 77618 107562 116427 155236 215124 232854 271663 465708 504517 543326 814989 1009034 1086652 1513551 1629978 2018068 3027102 3259956 3531619 6054204 7063238 10594857 14126476 21189714 42379428
• Sum of all divisors σ(n): 122325952
• Sum of proper divisors (its aliquot sum) s(n): 79946524
• 42379428 is an abundant number, because the sum of its proper divisors (79946524) is greater than itself. Its abundance is 37567096

Bases of 42379428

• Binary: 10100001101010100010100100₂
• Hexadecimal: 0x286A8A4
• Base-36: P8C6C

Squares and roots of 42379428

• 42379428 squared (42379428²) is 1796015917607184
• 42379428 cubed (42379428³) is 76114127267087586610752
• The square root of 42379428 is 6509.9483868921
• The cube root of 42379428 is 348.6462755989

Scales and comparisons

• 42,379,428 seconds is equal to 1 year, 18 weeks, 12 hours, 3 minutes, 48 seconds.
• To count from 1 to 42,379,428 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 42379428 cubic inches would be around 29.1 feet tall.

Recreational maths with 42379428

• 42379428 backwards is 82497324
• 42379428 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 42379428's digits is 39
• More coming soon!