668358768

Names of 668358768

• Cardinal: 668358768 can be written as Six hundred sixty-eight million, three hundred fifty-eight thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 6.68358768 × 10⁸

Factors of 668358768

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2789

Divisors of 668358768

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 33 42 44 48 56 66 67 77 84 88 112 132 134 154 168 176 201 231 264 268 308 336 402 462 469 528 536 616 737 804 924 938 1072 1232 1407 1474 1608 1848 1876 2211 2699 2814 2948 3216 3696 3752 4422 5159 5398 5628 5896 7504 8097 8844 10318 10796 11256 11792 15477 16194 17688 18893 20636 21592 22512 29689 30954 32388 35376 37786 41272 43184 56679 59378 61908 64776 75572 82544 89067 113358 118756 123816 129552 151144 178134 180833 207823 226716 237512 247632 302288 356268 361666 415646 453432 475024 542499 623469 712536 723332 831292 906864 1084998 1246938 1265831 1425072 1446664 1662584 1989163 2169996 2493876 2531662 2893328 3325168 3797493 3978326 4339992 4987752 5063324 5967489 7594986 7956652 8679984 9975504 10126648 11934978 13924141 15189972 15913304 20253296 23869956 27848282 30379944 31826608 41772423 47739912 55696564 60759888 83544846 95479824 111393128 167089692 222786256 334179384 668358768
• Sum of all divisors σ(n): 2185574400
• Sum of proper divisors (its aliquot sum) s(n): 1517215632
• 668358768 is an abundant number, because the sum of its proper divisors (1517215632) is greater than itself. Its abundance is 848856864

Bases of 668358768

• Binary: 100111110101100101100001110000₂
• Hexadecimal: 0x27D65870
• Base-36: B1X8XC

Squares and roots of 668358768

• 668358768 squared (668358768²) is 446703442762477824
• 668358768 cubed (668358768³) is 298558162666088195075960832
• The square root of 668358768 is 25852.6356103203
• The cube root of 668358768 is 874.3189336407

Scales and comparisons

• 668,358,768 seconds is equal to 21 years, 13 weeks, 15 hours, 12 minutes, 48 seconds.
• To count from 1 to 668,358,768 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 668358768 cubic inches would be around 72.9 feet tall.

Recreational maths with 668358768

• 668358768 backwards is 867853866
• The number of decimal digits it has is: 9
• The sum of 668358768's digits is 57
• More coming soon!