121739940
121,739,940 is an even composite number composed of six prime numbers multiplied together.
121739940 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 121739940:
22 × 32 × 5 × 7 × 53 × 1823
(2 × 2 × 3 × 3 × 5 × 7 × 53 × 1823)See below for interesting mathematical facts about the number 121739940 from the Numbermatics database.
Names of 121739940
- Cardinal: 121739940 can be written as One hundred twenty-one million, seven hundred thirty-nine thousand, nine hundred forty.
Scientific notation
- Scientific notation: 1.2173994 × 108
Factors of 121739940
Divisors of 121739940
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 53 60 63 70 84 90 105 106 126 140 159 180 210 212 252 265 315 318 371 420 477 530 630 636 742 795 954 1060 1113 1260 1484 1590 1823 1855 1908 2226 2385 3180 3339 3646 3710 4452 4770 5469 5565 6678 7292 7420 9115 9540 10938 11130 12761 13356 16407 16695 18230 21876 22260 25522 27345 32814 33390 36460 38283 51044 54690 63805 65628 66780 76566 82035 96619 109380 114849 127610 153132 164070 191415 193238 229698 255220 289857 328140 382830 386476 459396 483095 574245 579714 676333 765660 869571 966190 1148490 1159428 1352666 1449285 1739142 1932380 2028999 2296980 2705332 2898570 3381665 3478284 4057998 4347855 5797140 6086997 6763330 8115996 8695710 10144995 12173994 13526660 17391420 20289990 24347988 30434985 40579980 60869970 121739940
- Sum of all divisors σ(n): 430230528
- Sum of proper divisors (its aliquot sum) s(n): 308490588
- 121739940 is an abundant number, because the sum of its proper divisors (308490588) is greater than itself. Its abundance is 186750648
Bases of 121739940
- Binary: 1110100000110011010101001002
- Hexadecimal: 0x7419AA4
- Base-36: 20HB50
Squares and roots of 121739940
- 121739940 squared (1217399402) is 14820612991203600
- 121739940 cubed (1217399403) is 1804260536312346791784000
-
The
square root of 121739940 is 11033.5823738259 -
The
cube root of 121739940 is 495.6149076923
Scales and comparisons
How big is 121739940?- 121,739,940 seconds is equal to 3 years, 45 weeks, 2 days, 39 minutes.
-
To count from 1 to 121,739,940 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 121739940 cubic inches would be around 41.3 feet tall.
Recreational maths with 121739940
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