6409138986

Names of 6409138986

• Cardinal: 6409138986 can be written as Six billion, four hundred nine million, one hundred thirty-eight thousand, nine hundred eighty-six.

Scientific notation

• Scientific notation: 6.409138986 × 10⁹

Factors of 6409138986

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2734

Divisors of 6409138986

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 9 18 27 54 83 166 249 498 747 757 1494 1514 1889 2241 2271 3778 4482 4542 5667 6813 11334 13626 17001 20439 34002 40878 51003 62831 102006 125662 156787 188493 313574 376986 470361 565479 940722 1130958 1411083 1429973 1696437 2822166 2859946 3392874 4233249 4289919 8466498 8579838 12869757 25739514 38609271 77218542 118687759 237375518 356063277 712126554 1068189831 2136379662 3204569493 6409138986
• Sum of all divisors σ(n): 14440809600
• Sum of proper divisors (its aliquot sum) s(n): 8031670614
• 6409138986 is an abundant number, because the sum of its proper divisors (8031670614) is greater than itself. Its abundance is 1622531628

Bases of 6409138986

• Binary: 101111110000000111011001100101010₂
• Hexadecimal: 0x17E03B32A
• Base-36: 2XZU3AI

Squares and roots of 6409138986

• 6409138986 squared (6409138986²) is 41077062541865108196
• 6409138986 cubed (6409138986³) is 263268602967427922092091729256
• The square root of 6409138986 is 80057.0982861607
• The cube root of 6409138986 is 1857.5188509493

Scales and comparisons

• 6,409,138,986 seconds is equal to 203 years, 41 weeks, 20 hours, 23 minutes, 6 seconds.
• To count from 1 to 6,409,138,986 would take you about four hundred seven 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 6409138986 cubic inches would be around 154.8 feet tall.

Recreational maths with 6409138986

• 6409138986 backwards is 6898319046
• 6409138986 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 6409138986's digits is 54
• More coming soon!