9949940

Names of 9949940

• Cardinal: 9949940 can be written as Nine million, nine hundred forty-nine thousand, nine hundred forty.

Scientific notation

• Scientific notation: 9.94994 × 10⁶

Factors of 9949940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 109

Divisors of 9949940

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 11 13 14 20 22 26 28 35 44 49 52 55 65 70 71 77 91 98 110 130 140 142 143 154 182 196 220 245 260 284 286 308 355 364 385 455 490 497 539 572 637 710 715 770 781 910 923 980 994 1001 1078 1274 1420 1430 1540 1562 1820 1846 1988 2002 2156 2485 2548 2695 2860 3124 3185 3479 3692 3905 4004 4615 4970 5005 5390 5467 6370 6461 6958 7007 7810 9230 9940 10010 10153 10780 10934 12740 12922 13916 14014 15620 17395 18460 20020 20306 21868 25844 27335 28028 32305 34790 35035 38269 40612 45227 50765 54670 64610 69580 70070 71071 76538 90454 101530 109340 129220 140140 142142 153076 180908 191345 203060 226135 284284 355355 382690 452270 497497 710710 765380 904540 994994 1421420 1989988 2487485 4974970 9949940
• Sum of all divisors σ(n): 28957824
• Sum of proper divisors (its aliquot sum) s(n): 19007884
• 9949940 is an abundant number, because the sum of its proper divisors (19007884) is greater than itself. Its abundance is 9057944

Bases of 9949940

• Binary: 100101111101001011110100₂
• Hexadecimal: 0x97D2F4
• Base-36: 5X9F8

Squares and roots of 9949940

• 9949940 squared (9949940²) is 99001306003600
• 9949940 cubed (9949940³) is 985057054657459784000
• The square root of 9949940 is 3154.3525484637
• The cube root of 9949940 is 215.0833641027

Scales and comparisons

• 9,949,940 seconds is equal to 16 weeks, 3 days, 3 hours, 52 minutes, 20 seconds.
• To count from 1 to 9,949,940 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 9949940 cubic inches would be around 17.9 feet tall.

Recreational maths with 9949940

• 9949940 backwards is 0499499
• 9949940 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 9949940's digits is 44
• More coming soon!