1225216940

Names of 1225216940

• Cardinal: 1225216940 can be written as One billion, two hundred twenty-five million, two hundred sixteen thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.22521694 × 10⁹

Factors of 1225216940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 913

Divisors of 1225216940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 20 29 41 58 67 82 116 134 145 164 205 268 290 335 410 580 670 769 820 1189 1340 1538 1943 2378 2747 3076 3845 3886 4756 5494 5945 7690 7772 9715 10988 11890 13735 15380 19430 22301 23780 27470 31529 38860 44602 51523 54940 63058 79663 89204 103046 111505 126116 157645 159326 206092 223010 257615 315290 318652 398315 446020 515230 630580 796630 914341 1030460 1494167 1593260 1828682 2112443 2988334 3657364 4224886 4571705 5976668 7470835 8449772 9143410 10562215 14941670 18286820 21124430 29883340 42248860 61260847 122521694 245043388 306304235 612608470 1225216940
• Sum of all divisors σ(n): 2770891200
• Sum of proper divisors (its aliquot sum) s(n): 1545674260
• 1225216940 is an abundant number, because the sum of its proper divisors (1545674260) is greater than itself. Its abundance is 320457320

Bases of 1225216940

• Binary: 1001001000001110101001110101100₂
• Hexadecimal: 0x490753AC
• Base-36: K9GNFW

Squares and roots of 1225216940

• 1225216940 squared (1225216940²) is 1501156550062963600
• 1225216940 cubed (1225216940³) is 1839242434729101069323384000
• The square root of 1225216940 is 35003.0990056595
• The cube root of 1225216940 is 1070.0506395809

Scales and comparisons

• 1,225,216,940 seconds is equal to 38 years, 49 weeks, 5 days, 18 hours, 2 minutes, 20 seconds.
• To count from 1 to 1,225,216,940 would take you about seventy-seven years!

  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 1225216940 cubic inches would be around 89.2 feet tall.

Recreational maths with 1225216940

• 1225216940 backwards is 0496125221
• The number of decimal digits it has is: 10
• The sum of 1225216940's digits is 32
• More coming soon!