121991220
121,991,220 is an even composite number composed of six prime numbers multiplied together.
121991220 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 121991220:
22 × 32 × 5 × 13 × 37 × 1409
(2 × 2 × 3 × 3 × 5 × 13 × 37 × 1409)See below for interesting mathematical facts about the number 121991220 from the Numbermatics database.
Names of 121991220
- Cardinal: 121991220 can be written as One hundred twenty-one million, nine hundred ninety-one thousand, two hundred twenty.
Scientific notation
- Scientific notation: 1.2199122 × 108
Factors of 121991220
Divisors of 121991220
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 37 39 45 52 60 65 74 78 90 111 117 130 148 156 180 185 195 222 234 260 333 370 390 444 468 481 555 585 666 740 780 962 1110 1170 1332 1409 1443 1665 1924 2220 2340 2405 2818 2886 3330 4227 4329 4810 5636 5772 6660 7045 7215 8454 8658 9620 12681 14090 14430 16908 17316 18317 21135 21645 25362 28180 28860 36634 42270 43290 50724 52133 54951 63405 73268 84540 86580 91585 104266 109902 126810 156399 164853 183170 208532 219804 253620 260665 274755 312798 329706 366340 469197 521330 549510 625596 659412 677729 781995 824265 938394 1042660 1099020 1355458 1563990 1648530 1876788 2033187 2345985 2710916 3127980 3297060 3388645 4066374 4691970 6099561 6777290 8132748 9383940 10165935 12199122 13554580 20331870 24398244 30497805 40663740 60995610 121991220
- Sum of all divisors σ(n): 409565520
- Sum of proper divisors (its aliquot sum) s(n): 287574300
- 121991220 is an abundant number, because the sum of its proper divisors (287574300) is greater than itself. Its abundance is 165583080
Bases of 121991220
- Binary: 1110100010101110000001101002
- Hexadecimal: 0x7457034
- Base-36: 20MP10
Squares and roots of 121991220
- 121991220 squared (1219912202) is 14881857757088400
- 121991220 cubed (1219912203) is 1815455983653677563848000
-
The
square root of 121991220 is 11044.9635581109 -
The
cube root of 121991220 is 495.9556682977
Scales and comparisons
How big is 121991220?- 121,991,220 seconds is equal to 3 years, 45 weeks, 4 days, 22 hours, 27 minutes.
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To count from 1 to 121,991,220 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 121991220 cubic inches would be around 41.3 feet tall.
Recreational maths with 121991220
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The information we have on file for 121991220 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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