121803990
121,803,990 is an even composite number composed of seven prime numbers multiplied together.
121803990 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 121803990:
2 × 3 × 5 × 7 × 11 × 67 × 787
See below for interesting mathematical facts about the number 121803990 from the Numbermatics database.
Names of 121803990
- Cardinal: 121803990 can be written as One hundred twenty-one million, eight hundred three thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.2180399 × 108
Factors of 121803990
Divisors of 121803990
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 67 70 77 105 110 134 154 165 201 210 231 330 335 385 402 462 469 670 737 770 787 938 1005 1155 1407 1474 1574 2010 2211 2310 2345 2361 2814 3685 3935 4422 4690 4722 5159 5509 7035 7370 7870 8657 10318 11018 11055 11805 14070 15477 16527 17314 22110 23610 25795 25971 27545 30954 33054 43285 51590 51942 52729 55090 60599 77385 82635 86570 105458 121198 129855 154770 158187 165270 181797 259710 263645 302995 316374 363594 369103 527290 580019 605990 738206 790935 908985 1107309 1160038 1581870 1740057 1817970 1845515 2214618 2900095 3480114 3691030 4060133 5536545 5800190 8120266 8700285 11073090 12180399 17400570 20300665 24360798 40601330 60901995 121803990
- Sum of all divisors σ(n): 370372608
- Sum of proper divisors (its aliquot sum) s(n): 248568618
- 121803990 is an abundant number, because the sum of its proper divisors (248568618) is greater than itself. Its abundance is 126764628
Bases of 121803990
- Binary: 1110100001010010100110101102
- Hexadecimal: 0x74294D6
- Base-36: 20IOK6
Squares and roots of 121803990
- 121803990 squared (1218039902) is 14836211979920100
- 121803990 cubed (1218039903) is 1807109815640068061199000
-
The
square root of 121803990 is 11036.4844946205 -
The
cube root of 121803990 is 495.7018103401
Scales and comparisons
How big is 121803990?- 121,803,990 seconds is equal to 3 years, 45 weeks, 2 days, 18 hours, 26 minutes, 30 seconds.
-
To count from 1 to 121,803,990 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 121803990 cubic inches would be around 41.3 feet tall.
Recreational maths with 121803990
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The information we have on file for 121803990 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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