6688938720

Names of 6688938720

• Cardinal: 6688938720 can be written as Six billion, six hundred eighty-eight million, nine hundred thirty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 6.68893872 × 10⁹

Factors of 6688938720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3743

Divisors of 6688938720

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 3733 7466 11199 14932 18665 22398 29864 37330 44796 55995 59728 74660 89592 111990 119456 149320 179184 223980 298640 358368 447960 597280 895920 1791840 13935289 27870578 41805867 55741156 69676445 83611734 111482312 139352890 167223468 209029335 222964624 278705780 334446936 418058670 445929248 557411560 668893872 836117340 1114823120 1337787744 1672234680 2229646240 3344469360 6688938720
• Sum of all divisors σ(n): 21075802776
• Sum of proper divisors (its aliquot sum) s(n): 14386864056
• 6688938720 is an abundant number, because the sum of its proper divisors (14386864056) is greater than itself. Its abundance is 7697925336

Bases of 6688938720

• Binary: 110001110101100010001101011100000₂
• Hexadecimal: 0x18EB11AE0
• Base-36: 32MF65C

Squares and roots of 6688938720

• 6688938720 squared (6688938720²) is 44741901199915238400
• 6688938720 cubed (6688938720³) is 299275835342527498851790848000
• The square root of 6688938720 is 81785.9322866715
• The cube root of 6688938720 is 1884.1656085687

Scales and comparisons

• 6,688,938,720 seconds is equal to 212 years, 35 weeks, 5 days, 6 hours, 32 minutes.
• To count from 1 to 6,688,938,720 would take you about four hundred twenty-five 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 6688938720 cubic inches would be around 157 feet tall.

Recreational maths with 6688938720

• 6688938720 backwards is 0278398866
• The number of decimal digits it has is: 10
• The sum of 6688938720's digits is 57
• More coming soon!