428448021561

Names of 428448021561

• Cardinal: 428448021561 can be written as Four hundred twenty-eight billion, four hundred forty-eight million, twenty-one thousand, five hundred sixty-one.

Scientific notation

• Scientific notation: 4.28448021561 × 10¹¹

Factors of 428448021561

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 806009

Divisors of 428448021561

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 9 21 27 29 63 87 97 189 203 261 291 609 679 783 873 1827 2037 2619 2813 5481 6111 8439 18333 19691 25317 59073 75951 177219 531657 805873 2417619 5641111 7252857 16923333 21758571 23370317 50769999 70110951 78169681 152309997 163592219 210332853 234509043 490776657 547187767 630998559 703527129 1472329971 1641563301 2110581387 2266920749 4416989913 4924689903 6800762247 14774069709 15868445243 20402286741 47605335729 61206860223 142816007187 428448021561
• Sum of all divisors σ(n): 758166259200
• Sum of proper divisors (its aliquot sum) s(n): 329718237639
• 428448021561 is a deficient number, because the sum of its proper divisors (329718237639) is less than itself. Its deficiency is 98729783922

Bases of 428448021561

• Binary: 110001111000001011111011111110000111001₂
• Hexadecimal: 0x63C17DFC39
• Base-36: 5GTQW189

Squares and roots of 428448021561

• 428448021561 squared (428448021561²) is 183567707179535120876721
• 428448021561 cubed (428448021561³) is 78649220963560797967346100230981481
• The square root of 428448021561 is 654559.4102608257
• The cube root of 428448021561 is 7538.7506787119

Scales and comparisons

• 428,448,021,561 seconds is equal to 13,623 years, 16 weeks, 5 days, 3 hours, 19 minutes, 21 seconds.
• To count from 1 to 428,448,021,561 would take you about twenty-seven thousand, two hundred forty-six 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 428448021561 cubic inches would be around 628.2 feet tall.

Recreational maths with 428448021561

• 428448021561 backwards is 165120844824
• The number of decimal digits it has is: 12
• The sum of 428448021561's digits is 45
• More coming soon!