9897840

Names of 9897840

• Cardinal: 9897840 can be written as Nine million, eight hundred ninety-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 9.89784 × 10⁶

Factors of 9897840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 302

Divisors of 9897840

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 59 60 72 80 90 118 120 144 177 180 233 236 240 295 354 360 466 472 531 590 699 708 720 885 932 944 1062 1165 1180 1398 1416 1770 1864 2097 2124 2330 2360 2655 2796 2832 3495 3540 3728 4194 4248 4660 4720 5310 5592 6990 7080 8388 8496 9320 10485 10620 11184 13747 13980 14160 16776 18640 20970 21240 27494 27960 33552 41241 41940 42480 54988 55920 68735 82482 83880 109976 123723 137470 164964 167760 206205 219952 247446 274940 329928 412410 494892 549880 618615 659856 824820 989784 1099760 1237230 1649640 1979568 2474460 3299280 4948920 9897840
• Sum of all divisors σ(n): 33948720
• Sum of proper divisors (its aliquot sum) s(n): 24050880
• 9897840 is an abundant number, because the sum of its proper divisors (24050880) is greater than itself. Its abundance is 14153040

Bases of 9897840

• Binary: 100101110000011101110000₂
• Hexadecimal: 0x970770
• Base-36: 5W580

Squares and roots of 9897840

• 9897840 squared (9897840²) is 97967236665600
• 9897840 cubed (9897840³) is 969664033758242304000
• The square root of 9897840 is 3146.0832792537
• The cube root of 9897840 is 214.7072995539

Scales and comparisons

• 9,897,840 seconds is equal to 16 weeks, 2 days, 13 hours, 24 minutes.
• To count from 1 to 9,897,840 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 9897840 cubic inches would be around 17.9 feet tall.

Recreational maths with 9897840

• 9897840 backwards is 0487989
• 9897840 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 9897840's digits is 45
• More coming soon!