393990969968

Names of 393990969968

• Cardinal: 393990969968 can be written as Three hundred ninety-three billion, nine hundred ninety million, nine hundred sixty-nine thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 3.93990969968 × 10¹¹

Factors of 393990969968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4720

Divisors of 393990969968

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 16 31 62 124 157 248 314 496 628 1256 1999 2512 2531 3998 4867 5062 7996 9734 10124 15992 19468 20248 31984 38936 40496 61969 77872 78461 123938 156922 247876 313843 313844 397367 495752 627686 627688 794734 991504 1255372 1255376 1589468 2510744 3178936 5021488 5059469 6357872 9729133 10118938 12318377 19458266 20237876 24636754 38916532 40475752 49273508 77833064 80951504 98547016 155666128 156843539 197094032 313687078 627374156 794336633 1254748312 1588673266 2509496624 3177346532 6354693064 12709386128 24624435623 49248871246 98497742492 196995484984 393990969968
• Sum of all divisors σ(n): 793711104000
• Sum of proper divisors (its aliquot sum) s(n): 399720134032
• 393990969968 is an abundant number, because the sum of its proper divisors (399720134032) is greater than itself. Its abundance is 5729164064

Bases of 393990969968

• Binary: 101101110111011101100010001101001110000₂
• Hexadecimal: 0x5BBBB11A70
• Base-36: 50ZW1U28

Squares and roots of 393990969968

• 393990969968 squared (393990969968²) is 155228884416325477921024
• 393990969968 cubed (393990969968³) is 61158778738238634580495413859807232
• The square root of 393990969968 is 627686.9999992035
• The cube root of 393990969968 is 7330.9809234137

Scales and comparisons

• 393,990,969,968 seconds is equal to 12,527 years, 36 weeks, 16 hours, 6 minutes, 8 seconds.
• To count from 1 to 393,990,969,968 would take you about twenty-five thousand and fifty-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 393990969968 cubic inches would be around 610.9 feet tall.

Recreational maths with 393990969968

• 393990969968 backwards is 869969099393
• The number of decimal digits it has is: 12
• The sum of 393990969968's digits is 80
• More coming soon!