68169728

Names of 68169728

• Cardinal: 68169728 can be written as Sixty-eight million, one hundred sixty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 6.8169728 × 10⁷

Factors of 68169728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 119

Divisors of 68169728

• Number of divisors d(n): 104
• Complete list of divisors:
  1 2 4 8 11 16 17 22 32 34 44 64 68 88 89 128 136 176 178 187 256 272 352 356 374 512 544 704 712 748 979 1024 1088 1408 1424 1496 1513 1958 2048 2176 2816 2848 2992 3026 3916 4096 4352 5632 5696 5984 6052 7832 8704 11264 11392 11968 12104 15664 16643 17408 22528 22784 23936 24208 31328 33286 34816 45056 45568 47872 48416 62656 66572 69632 91136 95744 96832 125312 133144 182272 191488 193664 250624 266288 364544 382976 387328 501248 532576 765952 774656 1002496 1065152 1549312 2004992 2130304 3098624 4009984 4260608 6197248 8521216 17042432 34084864 68169728
• Sum of all divisors σ(n): 159233040
• Sum of proper divisors (its aliquot sum) s(n): 91063312
• 68169728 is an abundant number, because the sum of its proper divisors (91063312) is greater than itself. Its abundance is 22893584

Bases of 68169728

• Binary: 100000100000011000000000000₂
• Hexadecimal: 0x4103000
• Base-36: 14L43K

Squares and roots of 68169728

• 68169728 squared (68169728²) is 4647111815593984
• 68169728 cubed (68169728³) is 316792348454628047716352
• The square root of 68169728 is 8256.4961091253
• The cube root of 68169728 is 408.5048217453

Scales and comparisons

• 68,169,728 seconds is equal to 2 years, 8 weeks, 5 days, 2 minutes, 8 seconds.
• To count from 1 to 68,169,728 would take you about three 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 68169728 cubic inches would be around 34 feet tall.

Recreational maths with 68169728

• 68169728 backwards is 82796186
• The number of decimal digits it has is: 8
• The sum of 68169728's digits is 47
• More coming soon!