668836746

Names of 668836746

• Cardinal: 668836746 can be written as Six hundred sixty-eight million, eight hundred thirty-six thousand, seven hundred forty-six.

Scientific notation

• Scientific notation: 6.68836746 × 10⁸

Factors of 668836746

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 209

Divisors of 668836746

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 9 17 18 19 34 38 51 57 67 101 102 114 134 153 171 201 202 289 303 306 323 342 402 578 603 606 646 867 909 969 1139 1206 1273 1717 1734 1818 1919 1938 2278 2546 2601 2907 3417 3434 3819 3838 5151 5202 5491 5757 5814 6767 6834 7638 10251 10302 10982 11457 11514 13534 15453 16473 17271 19363 20301 20502 21641 22914 29189 30906 32623 32946 34542 38726 40602 43282 49419 58089 58378 60903 64923 65246 87567 97869 98838 115039 116178 121806 128573 129846 174267 175134 194769 195738 230078 257146 262701 293607 345117 348534 367897 385719 389538 525402 554591 587214 690234 735794 771438 1035351 1103691 1109182 1157157 1663773 1955663 2070702 2185741 2207382 2314314 3311073 3327546 3911326 4371482 4991319 5866989 6557223 6622146 9982638 11733978 13114446 17600967 19671669 35201934 37157597 39343338 74315194 111472791 222945582 334418373 668836746
• Sum of all divisors σ(n): 1660894560
• Sum of proper divisors (its aliquot sum) s(n): 992057814
• 668836746 is an abundant number, because the sum of its proper divisors (992057814) is greater than itself. Its abundance is 323221068

Bases of 668836746

• Binary: 100111110111011010001110001010₂
• Hexadecimal: 0x27DDA38A
• Base-36: B27HQI

Squares and roots of 668836746

• 668836746 squared (668836746²) is 447342592799868516
• 668836746 cubed (668836746³) is 299199164115467087469288936
• The square root of 668836746 is 25861.8782380553
• The cube root of 668836746 is 874.5273075725

Scales and comparisons

• 668,836,746 seconds is equal to 21 years, 13 weeks, 6 days, 3 hours, 59 minutes, 6 seconds.
• To count from 1 to 668,836,746 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 668836746 cubic inches would be around 72.9 feet tall.

Recreational maths with 668836746

• 668836746 backwards is 647638866
• The number of decimal digits it has is: 9
• The sum of 668836746's digits is 54
• More coming soon!