1428

Names of 1428

• Cardinal: 1428 can be written as One thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 1.428 × 10³

Factors of 1428

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 29

Divisors of 1428

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 3 4 6 7 12 14 17 21 28 34 42 51 68 84 102 119 204 238 357 476 714 1428
• Sum of all divisors σ(n): 4032
• Sum of proper divisors (its aliquot sum) s(n): 2604
• 1428 is an abundant number, because the sum of its proper divisors (2604) is greater than itself. Its abundance is 1176

Bases of 1428

• Binary: 10110010100₂
• Hexadecimal: 0x594
• Base-36: 13O

Squares and roots of 1428

• 1428 squared (1428²) is 2039184
• 1428 cubed (1428³) is 2911954752
• The square root of 1428 is 37.7888872553
• The cube root of 1428 is 11.2609769405

Scales and comparisons

• 1,428 seconds is equal to 23 minutes, 48 seconds.
• To count from 1 to 1,428 would take you about twenty-three minutes.

  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 1428 cubic inches would be around 0.9 feet tall.

Recreational maths with 1428

• 1428 backwards is 8241
• The number of decimal digits it has is: 4
• The sum of 1428's digits is 15
• More coming soon!