642723378466

Names of 642723378466

• Cardinal: 642723378466 can be written as Six hundred forty-two billion, seven hundred twenty-three million, three hundred seventy-eight thousand, four hundred sixty-six.

Scientific notation

• Scientific notation: 6.42723378466 × 10¹¹

Factors of 642723378466

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 718

Divisors of 642723378466

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 13 26 73 89 146 169 178 338 541 949 1082 1157 1898 2314 6497 7033 12337 12994 14066 15041 24674 30082 39493 48149 78986 84461 91429 96298 168922 182858 292681 513409 585362 625937 1026818 1097993 1251874 2195986 3514877 3804853 6674317 7029754 7609706 8137181 13348634 16274362 21365713 26048609 42731426 45693401 49463089 52097218 91386802 98926178 277754269 338631917 555508538 594014213 677263834 1188028426 1901548457 3610805497 3803096914 4402214921 7221610994 8804429842 24720129941 49440259882 321361689233 642723378466
• Sum of all divisors σ(n): 1072122983820
• Sum of proper divisors (its aliquot sum) s(n): 429399605354
• 642723378466 is a deficient number, because the sum of its proper divisors (429399605354) is less than itself. Its deficiency is 213323773112

Bases of 642723378466

• Binary: 1001010110100101010011000111010100100010₂
• Hexadecimal: 0x95A54C7522
• Base-36: 879GWKRM

Squares and roots of 642723378466

• 642723378466 squared (642723378466²) is 413093341226749072513156
• 642723378466 cubed (642723378466³) is 265504747895064324855687641552098696
• The square root of 642723378466 is 801700.3046438239
• The cube root of 642723378466 is 8629.9450898553

Scales and comparisons

• 642,723,378,466 seconds is equal to 20,436 years, 31 weeks, 6 days, 23 hours, 47 minutes, 46 seconds.
• To count from 1 to 642,723,378,466 would take you about forty thousand, eight hundred seventy-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 642723378466 cubic inches would be around 719.2 feet tall.

Recreational maths with 642723378466

• 642723378466 backwards is 664873327246
• The number of decimal digits it has is: 12
• The sum of 642723378466's digits is 58
• More coming soon!