1217130720

Names of 1217130720

• Cardinal: 1217130720 can be written as One billion, two hundred seventeen million, one hundred thirty thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.21713072 × 10⁹

Factors of 1217130720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 195076

Divisors of 1217130720

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 195 208 240 260 312 390 416 480 520 624 780 1040 1248 1560 2080 3120 6240 195053 390106 585159 780212 975265 1170318 1560424 1950530 2340636 2535689 2925795 3120848 3901060 4681272 5071378 5851590 6241696 7607067 7802120 9362544 10142756 11703180 12678445 15214134 15604240 18725088 20285512 23406360 25356890 30428268 31208480 38035335 40571024 46812720 50713780 60856536 76070670 81142048 93625440 101427560 121713072 152141340 202855120 243426144 304282680 405710240 608565360 1217130720
• Sum of all divisors σ(n): 4128903072
• Sum of proper divisors (its aliquot sum) s(n): 2911772352
• 1217130720 is an abundant number, because the sum of its proper divisors (2911772352) is greater than itself. Its abundance is 1694641632

Bases of 1217130720

• Binary: 1001000100010111111000011100000₂
• Hexadecimal: 0x488BF0E0
• Base-36: K4NC2O

Squares and roots of 1217130720

• 1217130720 squared (1217130720²) is 1481407189567718400
• 1217130720 cubed (1217130720³) is 1803066199251733584949248000
• The square root of 1217130720 is 34887.4005910443
• The cube root of 1217130720 is 1067.6913919877

Scales and comparisons

• 1,217,130,720 seconds is equal to 38 years, 36 weeks, 3 days, 3 hours, 52 minutes.
• To count from 1 to 1,217,130,720 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 1217130720 cubic inches would be around 89 feet tall.

Recreational maths with 1217130720

• 1217130720 backwards is 0270317121
• 1217130720 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1217130720's digits is 24
• More coming soon!