642464669625

Names of 642464669625

• Cardinal: 642464669625 can be written as Six hundred forty-two billion, four hundred sixty-four million, six hundred sixty-nine thousand, six hundred twenty-five.

Scientific notation

• Scientific notation: 6.42464669625 × 10¹¹

Factors of 642464669625

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 178849

Divisors of 642464669625

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 15 25 29 75 87 125 145 331 375 435 725 993 1655 2175 3625 4965 8275 9599 10875 24825 28797 41375 47995 124125 143985 178481 239975 535443 719925 892405 1199875 2677215 3599625 4462025 5175949 13386075 15527847 22310125 25879745 59077211 66930375 77639235 129398725 177231633 295386055 388196175 646993625 886158165 1476930275 1713239119 1940980875 4430790825 5139717357 7384651375 8566195595 22153954125 25698586785 42830977975 128492933925 214154889875 642464669625
• Sum of all divisors σ(n): 1109272769280
• Sum of proper divisors (its aliquot sum) s(n): 466808099655
• 642464669625 is a deficient number, because the sum of its proper divisors (466808099655) is less than itself. Its deficiency is 175656569970

Bases of 642464669625

• Binary: 1001010110010101111000001101111110111001₂
• Hexadecimal: 0x9595E0DFB9
• Base-36: 8756VJQX

Squares and roots of 642464669625

• 642464669625 squared (642464669625²) is 412760851716360397640625
• 642464669625 cubed (642464669625³) is 265184264232085097077617770103515625
• The square root of 642464669625 is 801538.9383086763
• The cube root of 642464669625 is 8628.7870267367

Scales and comparisons

• 642,464,669,625 seconds is equal to 20,428 years, 20 weeks, 1 day, 16 hours, 13 minutes, 45 seconds.
• To count from 1 to 642,464,669,625 would take you about forty thousand, eight hundred fifty-six 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 642464669625 cubic inches would be around 719.1 feet tall.

Recreational maths with 642464669625

• 642464669625 backwards is 526966464246
• The number of decimal digits it has is: 12
• The sum of 642464669625's digits is 60
• More coming soon!