64938690900

Names of 64938690900

• Cardinal: 64938690900 can be written as Sixty-four billion, nine hundred thirty-eight million, six hundred ninety thousand, nine hundred.

Scientific notation

• Scientific notation: 6.49386909 × 10¹⁰

Factors of 64938690900

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 24051377

Divisors of 64938690900

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 90 100 108 135 150 180 225 270 300 450 540 675 900 1350 2700 24051367 48102734 72154101 96205468 120256835 144308202 216462303 240513670 288616404 360770505 432924606 481027340 601284175 649386909 721541010 865849212 1082311515 1202568350 1298773818 1443082020 1803852525 2164623030 2405136700 2597547636 3246934545 3607705050 4329246060 5411557575 6493869090 7215410100 10823115150 12987738180 16234672725 21646230300 32469345450 64938690900
• Sum of all divisors σ(n): 208765874240
• Sum of proper divisors (its aliquot sum) s(n): 143827183340
• 64938690900 is an abundant number, because the sum of its proper divisors (143827183340) is greater than itself. Its abundance is 78888492440

Bases of 64938690900

• Binary: 111100011110101001011100100101010100₂
• Hexadecimal: 0xF1EA5C954
• Base-36: TTYTIL0

Squares and roots of 64938690900

• 64938690900 squared (64938690900²) is 4217033575805742810000
• 64938690900 cubed (64938690900³) is 273848639894170850783487429000000
• The square root of 64938690900 is 254830.7102764501
• The cube root of 64938690900 is 4019.4612220687

Scales and comparisons

• 64,938,690,900 seconds is equal to 2,064 years, 44 weeks, 1 day, 5 hours, 15 minutes.
• To count from 1 to 64,938,690,900 would take you about four thousand, one hundred twenty-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 64938690900 cubic inches would be around 335 feet tall.

Recreational maths with 64938690900

• 64938690900 backwards is 00909683946
• 64938690900 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 64938690900's digits is 54
• More coming soon!