72649491642

Names of 72649491642

• Cardinal: 72649491642 can be written as Seventy-two billion, six hundred forty-nine million, four hundred ninety-one thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 7.2649491642 × 10¹⁰

Factors of 72649491642

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 44352584

Divisors of 72649491642

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 182 234 273 546 819 1638 44352559 88705118 133057677 266115354 310467913 399173031 576583267 620935826 798346062 931403739 1153166534 1729749801 1862807478 2794211217 3459499602 4036082869 5189249403 5588422434 8072165738 10378498806 12108248607 24216497214 36324745821 72649491642
• Sum of all divisors σ(n): 193731982080
• Sum of proper divisors (its aliquot sum) s(n): 121082490438
• 72649491642 is an abundant number, because the sum of its proper divisors (121082490438) is greater than itself. Its abundance is 48432998796

Bases of 72649491642

• Binary: 1000011101010001111110100010010111010₂
• Hexadecimal: 0x10EA3F44BA
• Base-36: XDHMQII

Squares and roots of 72649491642

• 72649491642 squared (72649491642²) is 5277948635841027856164
• 72649491642 cubed (72649491642³) is 383440285306438054877075696181288
• The square root of 72649491642 is 269535.6964151501
• The cube root of 72649491642 is 4172.6394514153

Scales and comparisons

• 72,649,491,642 seconds is equal to 2,310 years, 1 week, 3 days, 14 hours, 20 minutes, 42 seconds.
• To count from 1 to 72,649,491,642 would take you about four thousand, six hundred twenty 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 72649491642 cubic inches would be around 347.7 feet tall.

Recreational maths with 72649491642

• 72649491642 backwards is 24619494627
• The number of decimal digits it has is: 11
• The sum of 72649491642's digits is 54
• More coming soon!