6390149780

Names of 6390149780

• Cardinal: 6390149780 can be written as Six billion, three hundred ninety million, one hundred forty-nine thousand, seven hundred eighty.

Scientific notation

• Scientific notation: 6.39014978 × 10⁹

Factors of 6390149780

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 51484

Divisors of 6390149780

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 7 10 14 20 28 35 49 70 98 127 140 196 245 254 490 508 635 889 980 1270 1778 2540 3556 4445 6223 8890 12446 17780 24892 31115 51343 62230 102686 124460 205372 256715 359401 513430 718802 1026860 1437604 1797005 2515807 3594010 5031614 6520561 7188020 10063228 12579035 13041122 25158070 26082244 32602805 45643927 50316140 65205610 91287854 130411220 182575708 228219635 319507489 456439270 639014978 912878540 1278029956 1597537445 3195074890 6390149780
• Sum of all divisors σ(n): 15733444608
• Sum of proper divisors (its aliquot sum) s(n): 9343294828
• 6390149780 is an abundant number, because the sum of its proper divisors (9343294828) is greater than itself. Its abundance is 2953145048

Bases of 6390149780

• Binary: 101111100111000011111001010010100₂
• Hexadecimal: 0x17CE1F294
• Base-36: 2XOJ34K

Squares and roots of 6390149780

• 6390149780 squared (6390149780²) is 40834014210834048400
• 6390149780 cubed (6390149780³) is 260935466925878067999769352000
• The square root of 6390149780 is 79938.4124185613
• The cube root of 6390149780 is 1855.6825303739

Scales and comparisons

• 6,390,149,780 seconds is equal to 203 years, 9 weeks, 5 days, 1 hour, 36 minutes, 20 seconds.
• To count from 1 to 6,390,149,780 would take you about four hundred 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 6390149780 cubic inches would be around 154.6 feet tall.

Recreational maths with 6390149780

• 6390149780 backwards is 0879410936
• The number of decimal digits it has is: 10
• The sum of 6390149780's digits is 47
• More coming soon!