2168606720

Names of 2168606720

• Cardinal: 2168606720 can be written as Two billion, one hundred sixty-eight million, six hundred six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.16860672 × 10⁹

Factors of 2168606720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 2175

Divisors of 2168606720

• Number of divisors d(n): 156
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 128 140 160 196 224 245 256 280 320 392 448 490 512 560 640 784 896 980 1024 1120 1280 1568 1792 1960 2048 2161 2240 2560 3136 3584 3920 4096 4322 4480 5120 6272 7168 7840 8644 8960 10240 10805 12544 14336 15127 15680 17288 17920 20480 21610 25088 28672 30254 31360 34576 35840 43220 50176 60508 62720 69152 71680 75635 86440 100352 105889 121016 125440 138304 143360 151270 172880 200704 211778 242032 250880 276608 302540 345760 423556 484064 501760 529445 553216 605080 691520 847112 968128 1003520 1058890 1106432 1210160 1383040 1694224 1936256 2117780 2212864 2420320 2766080 3388448 3872512 4235560 4425728 4840640 5532160 6776896 7745024 8471120 8851456 9681280 11064320 13553792 15490048 16942240 19362560 22128640 27107584 30980096 33884480 38725120 44257280 54215168 61960192 67768960 77450240 108430336 135537920 154900480 216860672 271075840 309800960 433721344 542151680 1084303360 2168606720
• Sum of all divisors σ(n): 6056458164
• Sum of proper divisors (its aliquot sum) s(n): 3887851444
• 2168606720 is an abundant number, because the sum of its proper divisors (3887851444) is greater than itself. Its abundance is 1719244724

Bases of 2168606720

• Binary: 10000001010000100101000000000000₂
• Hexadecimal: 0x81425000
• Base-36: ZV4RNK

Squares and roots of 2168606720

• 2168606720 squared (2168606720²) is 4702855106029158400
• 2168606720 cubed (2168606720³) is 10198643186121145422184448000
• The square root of 2168606720 is 46568.3016654033
• The cube root of 2168606720 is 1294.3754475611

Scales and comparisons

• 2,168,606,720 seconds is equal to 68 years, 49 weeks, 4 days, 14 hours, 45 minutes, 20 seconds.
• To count from 1 to 2,168,606,720 would take you about one hundred thirty-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 2168606720 cubic inches would be around 107.9 feet tall.

Recreational maths with 2168606720

• 2168606720 backwards is 0276068612
• The number of decimal digits it has is: 10
• The sum of 2168606720's digits is 38
• More coming soon!