9990000

Names of 9990000

• Cardinal: 9990000 can be written as Nine million, nine hundred ninety thousand.

Scientific notation

• Scientific notation: 9.99 × 10⁶

Factors of 9990000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 47

Divisors of 9990000

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 36 37 40 45 48 50 54 60 72 74 75 80 90 100 108 111 120 125 135 144 148 150 180 185 200 216 222 225 240 250 270 296 300 333 360 370 375 400 432 444 450 500 540 555 592 600 625 666 675 720 740 750 888 900 925 999 1000 1080 1110 1125 1200 1250 1332 1350 1480 1500 1665 1776 1800 1850 1875 1998 2000 2160 2220 2250 2500 2664 2700 2775 2960 3000 3330 3375 3600 3700 3750 3996 4440 4500 4625 4995 5000 5328 5400 5550 5625 6000 6660 6750 7400 7500 7992 8325 8880 9000 9250 9990 10000 10800 11100 11250 13320 13500 13875 14800 15000 15984 16650 16875 18000 18500 19980 22200 22500 23125 24975 26640 27000 27750 30000 33300 33750 37000 39960 41625 44400 45000 46250 49950 54000 55500 66600 67500 69375 74000 79920 83250 90000 92500 99900 111000 124875 133200 135000 138750 166500 185000 199800 208125 222000 249750 270000 277500 333000 370000 399600 416250 499500 555000 624375 666000 832500 999000 1110000 1248750 1665000 1998000 2497500 3330000 4995000 9990000
• Sum of all divisors σ(n): 36800720
• Sum of proper divisors (its aliquot sum) s(n): 26810720
• 9990000 is an abundant number, because the sum of its proper divisors (26810720) is greater than itself. Its abundance is 16820720

Bases of 9990000

• Binary: 100110000110111101110000₂
• Hexadecimal: 0x986F70
• Base-36: 5Y4C0

Squares and roots of 9990000

• 9990000 squared (9990000²) is 99800100000000
• 9990000 cubed (9990000³) is 997002999000000000000
• The square root of 9990000 is 3160.6961258559
• The cube root of 9990000 is 215.3716305621

Scales and comparisons

• 9,990,000 seconds is equal to 16 weeks, 3 days, 15 hours.
• To count from 1 to 9,990,000 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 9990000 cubic inches would be around 17.9 feet tall.

Recreational maths with 9990000

• 9990000 backwards is 0000999
• 9990000 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 9990000's digits is 27
• More coming soon!