428730864

Names of 428730864

• Cardinal: 428730864 can be written as Four hundred twenty-eight million, seven hundred thirty thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 4.28730864 × 10⁸

Factors of 428730864

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 23951

Divisors of 428730864

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 48 379 758 1137 1516 2274 3032 4548 6064 9096 18192 23567 47134 70701 94268 141402 188536 282804 377072 565608 1131216 8931893 17863786 26795679 35727572 53591358 71455144 107182716 142910288 214365432 428730864
• Sum of all divisors σ(n): 1110524160
• Sum of proper divisors (its aliquot sum) s(n): 681793296
• 428730864 is an abundant number, because the sum of its proper divisors (681793296) is greater than itself. Its abundance is 253062432

Bases of 428730864

• Binary: 11001100011011110100111110000₂
• Hexadecimal: 0x198DE9F0
• Base-36: 7396UO

Squares and roots of 428730864

• 428730864 squared (428730864²) is 183810153746186496
• 428730864 cubed (428730864³) is 78805086027575373135212544
• The square root of 428730864 is 20705.8171536407
• The cube root of 428730864 is 754.0409230417

Scales and comparisons

• 428,730,864 seconds is equal to 13 years, 32 weeks, 6 days, 3 hours, 54 minutes, 24 seconds.
• To count from 1 to 428,730,864 would take you about twenty 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 428730864 cubic inches would be around 62.8 feet tall.

Recreational maths with 428730864

• 428730864 backwards is 468037824
• The number of decimal digits it has is: 9
• The sum of 428730864's digits is 42
• More coming soon!