642321526032712868

Names of 642321526032712868

• Cardinal: 642321526032712868 can be written as Six hundred forty-two quadrillion, three hundred twenty-one trillion, five hundred twenty-six billion, thirty-two million, seven hundred twelve thousand, eight hundred sixty-eight.

Scientific notation

• Scientific notation: 6.42321526032712868 × 10¹⁷

Factors of 642321526032712868

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 384465

Divisors of 642321526032712868

• Number of divisors d(n): 36
• Complete list of divisors:
  1 2 4 23 46 92 71119 142238 284476 313321 626642 1253284 1635737 3271474 6542948 7206383 14412766 28825532 22283076199 44566152398 89132304796 98170049041 196340098082 392680196164 512510752577 1025021505154 2050043010308 2257911127943 4515822255886 9031644511772 6981755717746879 13963511435493758 27927022870987516 160580381508178217 321160763016356434 642321526032712868
• Sum of all divisors σ(n): 1172955196771102080
• Sum of proper divisors (its aliquot sum) s(n): 530633670738389212
• 642321526032712868 is a deficient number, because the sum of its proper divisors (530633670738389212) is less than itself. Its deficiency is 111687855294323656

Bases of 642321526032712868

• Binary: 100011101001111111000000011001010110110001000100010010100100₂
• Hexadecimal: 0x8E9FC0656C444A4
• Base-36: 4VOJZ7GDJ6HW

Squares and roots of 642321526032712868

• 642321526032712868 squared (642321526032712868²) is 412576942804993034588263267732785424
• 642321526032712868 cubed (642321526032712868³) is 265007051508414421465927330701274584400828292847636032
• The square root of 642321526032712868 is 801449640.3597127249
• The cube root of 642321526032712868 is 862814.6136856353

Scales and comparisons

• 642,321,526,032,712,868 seconds is equal to 20,423,837,696 years, 47 weeks, 1 day, 22 hours, 1 minute, 8 seconds.
• To count from 1 to 642,321,526,032,712,868 would take you about sixty-one billion, two hundred seventy-one million, five hundred thirteen thousand and ninety 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 642321526032712868 cubic inches would be around 71901.2 feet tall.

Recreational maths with 642321526032712868

• 642321526032712868 backwards is 868217230625123246
• The number of decimal digits it has is: 18
• The sum of 642321526032712868's digits is 68
• More coming soon!