399307816140

Names of 399307816140

• Cardinal: 399307816140 can be written as Three hundred ninety-nine billion, three hundred seven million, eight hundred sixteen thousand, one hundred forty.

Scientific notation

• Scientific notation: 3.9930781614 × 10¹¹

Factors of 399307816140

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 560268

Divisors of 399307816140

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 30 60 109 218 327 436 545 654 1090 1308 1635 2180 3270 6540 11881 23762 35643 47524 59405 71286 118810 142572 178215 237620 356430 560149 712860 1120298 1680447 2240596 2800745 3360894 5601490 6721788 8402235 11202980 16804470 33608940 61056241 122112482 183168723 244224964 305281205 366337446 610562410 732674892 915843615 1221124820 1831687230 3663374460 6655130269 13310260538 19965390807 26620521076 33275651345 39930781614 66551302690 79861563228 99826954035 133102605380 199653908070 399307816140
• Sum of all divisors σ(n): 1128415453200
• Sum of proper divisors (its aliquot sum) s(n): 729107637060
• 399307816140 is an abundant number, because the sum of its proper divisors (729107637060) is greater than itself. Its abundance is 329799820920

Bases of 399307816140

• Binary: 101110011111000100110011011110011001100₂
• Hexadecimal: 0x5CF899BCCC
• Base-36: 53FTKATO

Squares and roots of 399307816140

• 399307816140 squared (399307816140²) is 159446732030496044499600
• 399307816140 cubed (399307816140³) is 63668326357757163410043535103544000
• The square root of 399307816140 is 631908.0757040537
• The cube root of 399307816140 is 7363.8104981721

Scales and comparisons

• 399,307,816,140 seconds is equal to 12,696 years, 39 weeks, 1 day, 5 hours, 49 minutes.
• To count from 1 to 399,307,816,140 would take you about twenty-five thousand, three hundred ninety-three 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 399307816140 cubic inches would be around 613.7 feet tall.

Recreational maths with 399307816140

• 399307816140 backwards is 041618703993
• The number of decimal digits it has is: 12
• The sum of 399307816140's digits is 51
• More coming soon!