168720491536

Names of 168720491536

• Cardinal: 168720491536 can be written as One hundred sixty-eight billion, seven hundred twenty million, four hundred ninety-one thousand, five hundred thirty-six.

Scientific notation

• Scientific notation: 1.68720491536 × 10¹¹

Factors of 168720491536

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3572

Divisors of 168720491536

• Number of divisors d(n): 45
• Complete list of divisors:
  1 2 4 8 16 29 58 116 232 464 841 1682 3364 3541 6728 7082 13456 14164 28328 56656 102689 205378 410756 821512 1643024 2977981 5955962 11911924 12538681 23823848 25077362 47647696 50154724 100309448 200618896 363621749 727243498 1454486996 2908973992 5817947984 10545030721 21090061442 42180122884 84360245768 168720491536
• Sum of all divisors σ(n): 338652563223
• Sum of proper divisors (its aliquot sum) s(n): 169932071687
• 168720491536 is an abundant number, because the sum of its proper divisors (169932071687) is greater than itself. Its abundance is 1211580151

Bases of 168720491536

• Binary: 10011101001000100001100110010000010000₂
• Hexadecimal: 0x2748866410
• Base-36: 25IBTOGG

Squares and roots of 168720491536

• 168720491536 squared (168720491536²) is 28466604264149447639296
• 168720491536 cubed (168720491536³) is 4802899463808088388664915948998656
• 168720491536 is a perfect square number. Its square root is 410756
• The cube root of 168720491536 is 5525.7251251517

Scales and comparisons

• 168,720,491,536 seconds is equal to 5,364 years, 41 weeks, 11 hours, 12 minutes, 16 seconds.
• To count from 1 to 168,720,491,536 would take you about ten thousand, seven hundred twenty-nine 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 168720491536 cubic inches would be around 460.5 feet tall.

Recreational maths with 168720491536

• 168720491536 backwards is 635194027861
• The number of decimal digits it has is: 12
• The sum of 168720491536's digits is 52
• More coming soon!