121989560
121,989,560 is an even composite number composed of five prime numbers multiplied together.
121989560 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 121989560:
23 × 5 × 7 × 11 × 39607
(2 × 2 × 2 × 5 × 7 × 11 × 39607)See below for interesting mathematical facts about the number 121989560 from the Numbermatics database.
Names of 121989560
- Cardinal: 121989560 can be written as One hundred twenty-one million, nine hundred eighty-nine thousand, five hundred sixty.
Scientific notation
- Scientific notation: 1.2198956 × 108
Factors of 121989560
Divisors of 121989560
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 5 7 8 10 11 14 20 22 28 35 40 44 55 56 70 77 88 110 140 154 220 280 308 385 440 616 770 1540 3080 39607 79214 158428 198035 277249 316856 396070 435677 554498 792140 871354 1108996 1386245 1584280 1742708 2178385 2217992 2772490 3049739 3485416 4356770 5544980 6099478 8713540 11089960 12198956 15248695 17427080 24397912 30497390 60994780 121989560
- Sum of all divisors σ(n): 342213120
- Sum of proper divisors (its aliquot sum) s(n): 220223560
- 121989560 is an abundant number, because the sum of its proper divisors (220223560) is greater than itself. Its abundance is 98234000
Bases of 121989560
- Binary: 1110100010101101001101110002
- Hexadecimal: 0x74569B8
- Base-36: 20MNQW
Squares and roots of 121989560
- 121989560 squared (1219895602) is 14881452748993600
- 121989560 cubed (1219895603) is 1815381873010519706816000
-
The
square root of 121989560 is 11044.8884104821 -
The
cube root of 121989560 is 495.9534187091
Scales and comparisons
How big is 121989560?- 121,989,560 seconds is equal to 3 years, 45 weeks, 4 days, 21 hours, 59 minutes, 20 seconds.
-
To count from 1 to 121,989,560 would take you about five 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 121989560 cubic inches would be around 41.3 feet tall.
Recreational maths with 121989560
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