428978890515

Names of 428978890515

• Cardinal: 428978890515 can be written as Four hundred twenty-eight billion, nine hundred seventy-eight million, eight hundred ninety thousand, five hundred fifteen.

Scientific notation

• Scientific notation: 4.28978890515 × 10¹¹

Factors of 428978890515

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 694033

Divisors of 428978890515

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 7 15 21 29 35 49 87 105 145 147 203 245 435 609 735 841 1015 1421 2523 3045 4205 4263 5887 7105 12615 17661 21315 29435 41209 88305 123627 206045 618135 693989 2081967 3469945 4857923 10409835 14573769 20125681 24289615 34005461 60377043 72868845 100628405 102016383 140879767 170027305 301885215 422639301 510081915 583644749 704398835 986158369 1750934247 2113196505 2918223745 2958475107 4085513243 4930791845 8754671235 12256539729 14792375535 20427566215 28598592701 61282698645 85795778103 142992963505 428978890515
• Sum of all divisors σ(n): 826908516720
• Sum of proper divisors (its aliquot sum) s(n): 397929626205
• 428978890515 is a deficient number, because the sum of its proper divisors (397929626205) is less than itself. Its deficiency is 31049264310

Bases of 428978890515

• Binary: 110001111100001001000100110011100010011₂
• Hexadecimal: 0x63E1226713
• Base-36: 5H2IYEC3

Squares and roots of 428978890515

• 428978890515 squared (428978890515²) is 184022888507480356965225
• 428978890515 cubed (428978890515³) is 78941934541304467809098372937340875
• The square root of 428978890515 is 654964.8009740677
• The cube root of 428978890515 is 7541.8630258285

Scales and comparisons

• 428,978,890,515 seconds is equal to 13,640 years, 10 weeks, 3 days, 10 hours, 55 minutes, 15 seconds.
• To count from 1 to 428,978,890,515 would take you about twenty-seven thousand, two hundred eighty 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 428978890515 cubic inches would be around 628.5 feet tall.

Recreational maths with 428978890515

• 428978890515 backwards is 515098879824
• The number of decimal digits it has is: 12
• The sum of 428978890515's digits is 66
• More coming soon!