121390830
121,390,830 is an even composite number composed of six prime numbers multiplied together.
121390830 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 121390830:
2 × 32 × 5 × 112 × 71 × 157
(2 × 3 × 3 × 5 × 11 × 11 × 71 × 157)See below for interesting mathematical facts about the number 121390830 from the Numbermatics database.
Names of 121390830
- Cardinal: 121390830 can be written as One hundred twenty-one million, three hundred ninety thousand, eight hundred thirty.
Scientific notation
- Scientific notation: 1.2139083 × 108
Factors of 121390830
Divisors of 121390830
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 71 90 99 110 121 142 157 165 198 213 242 314 330 355 363 426 471 495 605 639 710 726 781 785 942 990 1065 1089 1210 1278 1413 1562 1570 1727 1815 2130 2178 2343 2355 2826 3195 3454 3630 3905 4686 4710 5181 5445 6390 7029 7065 7810 8591 8635 10362 10890 11147 11715 14058 14130 15543 17182 17270 18997 22294 23430 25773 25905 31086 33441 35145 37994 42955 51546 51810 55735 56991 66882 70290 77319 77715 85910 94985 100323 111470 113982 122617 128865 154638 155430 167205 170973 189970 200646 245234 257730 284955 334410 341946 367851 386595 501615 569910 613085 735702 773190 854865 1003230 1103553 1226170 1348787 1709730 1839255 2207106 2697574 3678510 4046361 5517765 6743935 8092722 11035530 12139083 13487870 20231805 24278166 40463610 60695415 121390830
- Sum of all divisors σ(n): 354043872
- Sum of proper divisors (its aliquot sum) s(n): 232653042
- 121390830 is an abundant number, because the sum of its proper divisors (232653042) is greater than itself. Its abundance is 111262212
Bases of 121390830
- Binary: 1110011110001000110111011102
- Hexadecimal: 0x73C46EE
- Base-36: 209TRI
Squares and roots of 121390830
- 121390830 squared (1213908302) is 14735733608088900
- 121390830 cubed (1213908303) is 1788782933344806284787000
-
The
square root of 121390830 is 11017.7506778833 -
The
cube root of 121390830 is 495.1407007437
Scales and comparisons
How big is 121390830?- 121,390,830 seconds is equal to 3 years, 44 weeks, 4 days, 23 hours, 40 minutes, 30 seconds.
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To count from 1 to 121,390,830 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 121390830 cubic inches would be around 41.3 feet tall.
Recreational maths with 121390830
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