30978672

Names of 30978672

• Cardinal: 30978672 can be written as Thirty million, nine hundred seventy-eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 3.0978672 × 10⁷

Factors of 30978672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 336

Divisors of 30978672

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 31 48 62 93 109 124 186 191 218 248 327 372 382 436 496 573 654 744 764 872 1146 1308 1488 1528 1744 2292 2616 3056 3379 4584 5232 5921 6758 9168 10137 11842 13516 17763 20274 20819 23684 27032 35526 40548 41638 47368 54064 62457 71052 81096 83276 94736 124914 142104 162192 166552 249828 284208 333104 499656 645389 999312 1290778 1936167 2581556 3872334 5163112 7744668 10326224 15489336 30978672
• Sum of all divisors σ(n): 83804160
• Sum of proper divisors (its aliquot sum) s(n): 52825488
• 30978672 is an abundant number, because the sum of its proper divisors (52825488) is greater than itself. Its abundance is 21846816

Bases of 30978672

• Binary: 1110110001011001001110000₂
• Hexadecimal: 0x1D8B270
• Base-36: IFZAO

Squares and roots of 30978672

• 30978672 squared (30978672²) is 959678118883584
• 30978672 cubed (30978672³) is 29729553670471554920448
• The square root of 30978672 is 5565.8487223425
• The cube root of 30978672 is 314.0660063815

Scales and comparisons

• 30,978,672 seconds is equal to 51 weeks, 1 day, 13 hours, 11 minutes, 12 seconds.
• To count from 1 to 30,978,672 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 30978672 cubic inches would be around 26.2 feet tall.

Recreational maths with 30978672

• 30978672 backwards is 27687903
• The number of decimal digits it has is: 8
• The sum of 30978672's digits is 42
• More coming soon!