642213492

Names of 642213492

• Cardinal: 642213492 can be written as Six hundred forty-two million, two hundred thirteen thousand, four hundred ninety-two.

Scientific notation

• Scientific notation: 6.42213492 × 10⁸

Factors of 642213492

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 798845

Divisors of 642213492

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 3 4 6 12 67 134 201 268 402 804 798773 1597546 2396319 3195092 4792638 9585276 53517791 107035582 160553373 214071164 321106746 642213492
• Sum of all divisors σ(n): 1520865696
• Sum of proper divisors (its aliquot sum) s(n): 878652204
• 642213492 is an abundant number, because the sum of its proper divisors (878652204) is greater than itself. Its abundance is 236438712

Bases of 642213492

• Binary: 100110010001110110011001110100₂
• Hexadecimal: 0x26476674
• Base-36: AMCV3O

Squares and roots of 642213492

• 642213492 squared (642213492²) is 412438169306834064
• 642213492 cubed (642213492³) is 264873356944629123705991488
• The square root of 642213492 is 25341.9314970269
• The cube root of 642213492 is 862.7662378259

Scales and comparisons

• 642,213,492 seconds is equal to 20 years, 21 weeks, 6 days, 38 minutes, 12 seconds.
• To count from 1 to 642,213,492 would take you about thirty 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 642213492 cubic inches would be around 71.9 feet tall.

Recreational maths with 642213492

• 642213492 backwards is 294312246
• The number of decimal digits it has is: 9
• The sum of 642213492's digits is 33
• More coming soon!