399454140438

Names of 399454140438

• Cardinal: 399454140438 can be written as Three hundred ninety-nine billion, four hundred fifty-four million, one hundred forty thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 3.99454140438 × 10¹¹

Factors of 399454140438

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7646

Divisors of 399454140438

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 6 9 18 27 54 81 162 311 622 933 1319 1866 2638 2799 3957 5598 6011 7914 8397 11871 12022 16794 18033 23742 25191 35613 36066 50382 54099 71226 106839 108198 162297 213678 324594 410209 486891 820418 973782 1230627 1869421 2461254 3691881 3738842 5608263 7383762 7928509 11075643 11216526 15857018 16824789 22151286 23785527 33226929 33649578 47571054 50474367 66453858 71356581 100948734 142713162 151423101 214069743 302846202 428139486 642209229 1284418458 2465766299 4931532598 7397298897 14794597794 22191896691 44383793382 66575690073 133151380146 199727070219 399454140438
• Sum of all divisors σ(n): 898781495040
• Sum of proper divisors (its aliquot sum) s(n): 499327354602
• 399454140438 is an abundant number, because the sum of its proper divisors (499327354602) is greater than itself. Its abundance is 99873214164

Bases of 399454140438

• Binary: 101110100000001010100100111100000010110₂
• Hexadecimal: 0x5D01527816
• Base-36: 53I8OJDI

Squares and roots of 399454140438

• 399454140438 squared (399454140438²) is 159563610313061426831844
• 399454140438 cubed (399454140438³) is 63738344802787944339408074586507672
• The square root of 399454140438 is 632023.8448334049
• The cube root of 399454140438 is 7364.7098651681

Scales and comparisons

• 399,454,140,438 seconds is equal to 12,701 years, 21 weeks, 19 hours, 27 minutes, 18 seconds.
• To count from 1 to 399,454,140,438 would take you about twenty-five thousand, four hundred two 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 399454140438 cubic inches would be around 613.7 feet tall.

Recreational maths with 399454140438

• 399454140438 backwards is 834041454993
• 399454140438 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 399454140438's digits is 54
• More coming soon!