68689620
68,689,620 is an even composite number composed of five prime numbers multiplied together.
68689620 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 68689620:
22 × 34 × 5 × 109 × 389
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 109 × 389)See below for interesting mathematical facts about the number 68689620 from the Numbermatics database.
Names of 68689620
- Cardinal: 68689620 can be written as Sixty-eight million, six hundred eighty-nine thousand, six hundred twenty.
Scientific notation
- Scientific notation: 6.868962 × 107
Factors of 68689620
Divisors of 68689620
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 109 135 162 180 218 270 324 327 389 405 436 540 545 654 778 810 981 1090 1167 1308 1556 1620 1635 1945 1962 2180 2334 2943 3270 3501 3890 3924 4668 4905 5835 5886 6540 7002 7780 8829 9810 10503 11670 11772 14004 14715 17505 17658 19620 21006 23340 29430 31509 35010 35316 42012 42401 44145 52515 58860 63018 70020 84802 88290 105030 126036 127203 157545 169604 176580 210060 212005 254406 315090 381609 424010 508812 630180 636015 763218 848020 1144827 1272030 1526436 1908045 2289654 2544060 3434481 3816090 4579308 5724135 6868962 7632180 11448270 13737924 17172405 22896540 34344810 68689620
- Sum of all divisors σ(n): 218017800
- Sum of proper divisors (its aliquot sum) s(n): 149328180
- 68689620 is an abundant number, because the sum of its proper divisors (149328180) is greater than itself. Its abundance is 80638560
Bases of 68689620
- Binary: 1000001100000011110110101002
- Hexadecimal: 0x4181ED4
- Base-36: 14W990
Squares and roots of 68689620
- 68689620 squared (686896202) is 4718263895744400
- 68689620 cubed (686896203) is 324095754058402453128000
-
The
square root of 68689620 is 8287.9201250977 -
The
cube root of 68689620 is 409.5406714021
Scales and comparisons
How big is 68689620?- 68,689,620 seconds is equal to 2 years, 9 weeks, 4 days, 27 minutes.
-
To count from 1 to 68,689,620 would take you about three 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 68689620 cubic inches would be around 34.1 feet tall.
Recreational maths with 68689620
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