19989216

Names of 19989216

• Cardinal: 19989216 can be written as Nineteen million, nine hundred eighty-nine thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 1.9989216 × 10⁷

Factors of 19989216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 318

Divisors of 19989216

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 32 36 38 39 48 52 57 72 76 78 96 104 114 117 144 152 156 171 208 228 234 247 281 288 304 312 342 416 456 468 494 562 608 624 684 741 843 912 936 988 1124 1248 1368 1482 1686 1824 1872 1976 2223 2248 2529 2736 2964 3372 3653 3744 3952 4446 4496 5058 5339 5472 5928 6744 7306 7904 8892 8992 10116 10678 10959 11856 13488 14612 16017 17784 20232 21356 21918 23712 26976 29224 32034 32877 35568 40464 42712 43836 48051 58448 64068 65754 69407 71136 80928 85424 87672 96102 116896 128136 131508 138814 170848 175344 192204 208221 256272 263016 277628 350688 384408 416442 512544 526032 555256 624663 768816 832884 1052064 1110512 1249326 1537632 1665768 2221024 2498652 3331536 4997304 6663072 9994608 19989216
• Sum of all divisors σ(n): 64668240
• Sum of proper divisors (its aliquot sum) s(n): 44679024
• 19989216 is an abundant number, because the sum of its proper divisors (44679024) is greater than itself. Its abundance is 24689808

Bases of 19989216

• Binary: 1001100010000001011100000₂
• Hexadecimal: 0x13102E0
• Base-36: BWFS0

Squares and roots of 19989216

• 19989216 squared (19989216²) is 399568756294656
• 19989216 cubed (19989216³) is 7987066176425238429696
• The square root of 19989216 is 4470.9301045755
• The cube root of 19989216 is 271.3929657555

Scales and comparisons

• 19,989,216 seconds is equal to 33 weeks, 8 hours, 33 minutes, 36 seconds.
• To count from 1 to 19,989,216 would take you about forty-nine 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 19989216 cubic inches would be around 22.6 feet tall.

Recreational maths with 19989216

• 19989216 backwards is 61298991
• The number of decimal digits it has is: 8
• The sum of 19989216's digits is 45
• More coming soon!