18421079940
18,421,079,940 is an even composite number composed of five prime numbers multiplied together.
18421079940 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 18421079940:
22 × 34 × 5 × 1972 × 293
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 197 × 197 × 293)See below for interesting mathematical facts about the number 18421079940 from the Numbermatics database.
Names of 18421079940
- Cardinal: 18421079940 can be written as Eighteen billion, four hundred twenty-one million, seventy-nine thousand, nine hundred forty.
Scientific notation
- Scientific notation: 1.842107994 × 1010
Factors of 18421079940
Divisors of 18421079940
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 197 270 293 324 394 405 540 586 591 788 810 879 985 1172 1182 1465 1620 1758 1773 1970 2364 2637 2930 2955 3516 3546 3940 4395 5274 5319 5860 5910 7092 7911 8790 8865 10548 10638 11820 13185 15822 15957 17580 17730 21276 23733 26370 26595 31644 31914 35460 38809 39555 47466 52740 53190 57721 63828 77618 79110 79785 94932 106380 115442 116427 118665 155236 158220 159570 173163 194045 230884 232854 237330 288605 319140 346326 349281 388090 465708 474660 519489 577210 582135 692652 698562 776180 865815 1038978 1047843 1154420 1164270 1397124 1558467 1731630 1746405 2077956 2095686 2328540 2597445 3116934 3143529 3463260 3492810 4191372 4675401 5194890 5239215 6233868 6287058 6985620 7792335 9350802 10389780 10478430 11371037 12574116 15584670 15717645 18701604 20956860 22742074 23377005 31169340 31435290 34113111 45484148 46754010 56855185 62870580 68226222 93508020 102339333 113710370 136452444 170565555 204678666 227420740 307017999 341131110 409357332 511696665 614035998 682262220 921053997 1023393330 1228071996 1535089995 1842107994 2046786660 3070179990 3684215988 4605269985 6140359980 9210539970 18421079940
- Sum of all divisors σ(n): 58280670756
- Sum of proper divisors (its aliquot sum) s(n): 39859590816
- 18421079940 is an abundant number, because the sum of its proper divisors (39859590816) is greater than itself. Its abundance is 21438510876
Bases of 18421079940
- Binary: 100010010011111101101011111100001002
- Hexadecimal: 0x449FB5F84
- Base-36: 8GNFO90
Squares and roots of 18421079940
- 18421079940 squared (184210799402) is 339336186155870403600
- 18421079940 cubed (184210799403) is 6250939011712010004995663784000
-
The
square root of 18421079940 is 135724.2791102609 -
The
cube root of 18421079940 is 2641.0200345507
Scales and comparisons
How big is 18421079940?- 18,421,079,940 seconds is equal to 585 years, 38 weeks, 22 hours, 39 minutes.
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To count from 1 to 18,421,079,940 would take you about one thousand, one hundred seventy-one 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 18421079940 cubic inches would be around 220.1 feet tall.
Recreational maths with 18421079940
- 18421079940 backwards is 04997012481
- 18421079940 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18421079940's digits is 45
- More coming soon!
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