64639740120

Names of 64639740120

• Cardinal: 64639740120 can be written as Sixty-four billion, six hundred thirty-nine million, seven hundred forty thousand, one hundred twenty.

Scientific notation

• Scientific notation: 6.463974012 × 10¹⁰

Factors of 64639740120

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 58912

Divisors of 64639740120

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 11321 22642 33963 45284 47581 56605 67926 90568 95162 113210 135852 142743 169815 190324 226420 237905 271704 285486 339630 380648 452840 475810 570972 679260 713715 951620 1141944 1358520 1427430 1903240 2854860 5709720 538664501 1077329002 1615993503 2154658004 2693322505 3231987006 4309316008 5386645010 6463974012 8079967515 10773290020 12927948024 16159935030 21546580040 32319870060 64639740120
• Sum of all divisors σ(n): 193940425440
• Sum of proper divisors (its aliquot sum) s(n): 129300685320
• 64639740120 is an abundant number, because the sum of its proper divisors (129300685320) is greater than itself. Its abundance is 64660945200

Bases of 64639740120

• Binary: 111100001100110101000010100011011000₂
• Hexadecimal: 0xF0CD428D8
• Base-36: TP0TYOO

Squares and roots of 64639740120

• 64639740120 squared (64639740120²) is 4178296002781137614400
• 64639740120 cubed (64639740120³) is 270083967764207532632772769728000
• The square root of 64639740120 is 254243.4662287313
• The cube root of 64639740120 is 4013.2837557909

Scales and comparisons

• 64,639,740,120 seconds is equal to 2,055 years, 17 weeks, 6 days, 3 hours, 22 minutes.
• To count from 1 to 64,639,740,120 would take you about four thousand, one hundred ten 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 64639740120 cubic inches would be around 334.4 feet tall.

Recreational maths with 64639740120

• 64639740120 backwards is 02104793646
• The number of decimal digits it has is: 11
• The sum of 64639740120's digits is 42
• More coming soon!