428333658921

Names of 428333658921

• Cardinal: 428333658921 can be written as Four hundred twenty-eight billion, three hundred thirty-three million, six hundred fifty-eight thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 4.28333658921 × 10¹¹

Factors of 428333658921

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 281219

Divisors of 428333658921

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 7 9 21 61 63 183 397 427 549 1191 1281 2779 3573 3843 8337 24217 25011 72651 169519 217953 280751 508557 842253 1525671 1965257 2526759 5895771 17125811 17687313 51377433 111458147 119880677 154132299 334374441 359642031 780207029 1003123323 1078926093 2340621087 6798946967 7021863261 20396840901 47592628769 61190522703 142777886307 428333658921
• Sum of all divisors σ(n): 720494980608
• Sum of proper divisors (its aliquot sum) s(n): 292161321687
• 428333658921 is a deficient number, because the sum of its proper divisors (292161321687) is less than itself. Its deficiency is 136172337234

Bases of 428333658921

• Binary: 110001110111010101011001111001100101001₂
• Hexadecimal: 0x63BAACF329
• Base-36: 5GRUSUG9

Squares and roots of 428333658921

• 428333658921 squared (428333658921²) is 183469723364651562884241
• 428333658921 cubed (428333658921³) is 78586257910004887044468067499963961
• The square root of 428333658921 is 654472.0459431403
• The cube root of 428333658921 is 7538.0798636559

Scales and comparisons

• 428,333,658,921 seconds is equal to 13,619 years, 35 weeks, 4 days, 11 hours, 55 minutes, 21 seconds.
• To count from 1 to 428,333,658,921 would take you about twenty-seven thousand, two hundred thirty-nine 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 428333658921 cubic inches would be around 628.2 feet tall.

Recreational maths with 428333658921

• 428333658921 backwards is 129856333824
• The number of decimal digits it has is: 12
• The sum of 428333658921's digits is 54
• More coming soon!