668769942

Names of 668769942

• Cardinal: 668769942 can be written as Six hundred sixty-eight million, seven hundred sixty-nine thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 6.68769942 × 10⁸

Factors of 668769942

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6309

Divisors of 668769942

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 19 23 38 41 46 57 69 82 114 123 138 246 437 779 874 943 1311 1558 1886 2337 2622 2829 4674 5658 6221 12442 17917 18663 35834 37326 53751 107502 118199 143083 236398 255061 286166 354597 429249 510122 709194 765183 858498 1530366 2718577 4846159 5437154 5866403 8155731 9692318 11732806 14538477 16311462 17599209 29076954 35198418 111461657 222923314 334384971 668769942
• Sum of all divisors σ(n): 1505226240
• Sum of proper divisors (its aliquot sum) s(n): 836456298
• 668769942 is an abundant number, because the sum of its proper divisors (836456298) is greater than itself. Its abundance is 167686356

Bases of 668769942

• Binary: 100111110111001001111010010110₂
• Hexadecimal: 0x27DC9E96
• Base-36: B2626U

Squares and roots of 668769942

• 668769942 squared (668769942²) is 447253235322683364
• 668769942 cubed (668769942³) is 299109520246063304626644888
• The square root of 668769942 is 25860.5866522783
• The cube root of 668769942 is 874.4981904185

Scales and comparisons

• 668,769,942 seconds is equal to 21 years, 13 weeks, 5 days, 9 hours, 25 minutes, 42 seconds.
• To count from 1 to 668,769,942 would take you about thirty-one 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 668769942 cubic inches would be around 72.9 feet tall.

Recreational maths with 668769942

• 668769942 backwards is 249967866
• 668769942 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 668769942's digits is 57
• More coming soon!