30689904

Names of 30689904

• Cardinal: 30689904 can be written as Thirty million, six hundred eighty-nine thousand, nine hundred four.

Scientific notation

• Scientific notation: 3.0689904 × 10⁷

Factors of 30689904

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 632

Divisors of 30689904

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 241 336 379 482 723 758 964 1137 1446 1516 1687 1928 2274 2653 2892 3032 3374 3856 4548 5061 5306 5784 6064 6748 7959 9096 10122 10612 11568 13496 15918 18192 20244 21224 26992 31836 40488 42448 63672 80976 91339 127344 182678 274017 365356 548034 639373 730712 1096068 1278746 1461424 1918119 2192136 2557492 3836238 4384272 5114984 7672476 10229968 15344952 30689904
• Sum of all divisors σ(n): 91224320
• Sum of proper divisors (its aliquot sum) s(n): 60534416
• 30689904 is an abundant number, because the sum of its proper divisors (60534416) is greater than itself. Its abundance is 29844512

Bases of 30689904

• Binary: 1110101000100101001110000₂
• Hexadecimal: 0x1D44A70
• Base-36: I9SHC

Squares and roots of 30689904

• 30689904 squared (30689904²) is 941870207529216
• 30689904 cubed (30689904³) is 28905906249531716235264
• The square root of 30689904 is 5539.8469292933
• The cube root of 30689904 is 313.0871019585

Scales and comparisons

• 30,689,904 seconds is equal to 50 weeks, 5 days, 4 hours, 58 minutes, 24 seconds.
• To count from 1 to 30,689,904 would take you about twenty-four weeks!

  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 30689904 cubic inches would be around 26.1 feet tall.

Recreational maths with 30689904

• 30689904 backwards is 40998603
• The number of decimal digits it has is: 8
• The sum of 30689904's digits is 39
• More coming soon!