21120012900
21,120,012,900 is an even composite number composed of six prime numbers multiplied together.
21120012900 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred sixty divisors.
Prime factorization of 21120012900:
22 × 34 × 52 × 7 × 17 × 21911
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 5 × 7 × 17 × 21911)See below for interesting mathematical facts about the number 21120012900 from the Numbermatics database.
Names of 21120012900
- Cardinal: 21120012900 can be written as Twenty-one billion, one hundred twenty million, twelve thousand, nine hundred.
Scientific notation
- Scientific notation: 2.11200129 × 1010
Factors of 21120012900
Divisors of 21120012900
- Number of divisors d(n): 360
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Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 17 18 20 21 25 27 28 30 34 35 36 42 45 50 51 54 60 63 68 70 75 81 84 85 90 100 102 105 108 119 126 135 140 150 153 162 170 175 180 189 204 210 225 238 252 255 270 300 306 315 324 340 350 357 378 405 420 425 450 459 476 510 525 540 567 595 612 630 675 700 714 756 765 810 850 900 918 945 1020 1050 1071 1134 1190 1260 1275 1350 1377 1428 1530 1575 1620 1700 1785 1836 1890 2025 2100 2142 2268 2295 2380 2550 2700 2754 2835 2975 3060 3150 3213 3570 3780 3825 4050 4284 4590 4725 5100 5355 5508 5670 5950 6300 6426 6885 7140 7650 8100 8925 9180 9450 9639 10710 11340 11475 11900 12852 13770 14175 15300 16065 17850 18900 19278 21420 21911 22950 26775 27540 28350 32130 34425 35700 38556 43822 45900 48195 53550 56700 64260 65733 68850 80325 87644 96390 107100 109555 131466 137700 153377 160650 192780 197199 219110 240975 262932 306754 321300 328665 372487 394398 438220 460131 481950 547775 591597 613508 657330 744974 766885 788796 920262 963900 985995 1095550 1117461 1183194 1314660 1380393 1489948 1533770 1643325 1774791 1840524 1862435 1971990 2191100 2234922 2300655 2366388 2607409 2760786 2957985 3067540 3286650 3352383 3549582 3724870 3834425 3943980 4141179 4469844 4601310 4929975 5214818 5521572 5587305 5915970 6573300 6704766 6901965 7099164 7449740 7668850 7822227 8282358 8873955 9202620 9312175 9859950 10057149 10429636 11174610 11503275 11831940 12423537 13037045 13409532 13803930 14789925 15337700 15644454 16564716 16761915 17747910 18624350 19719900 20114298 20705895 22349220 23006550 23466681 24847074 26074090 27607860 27936525 29579850 30171447 31288908 33523830 34509825 35495820 37248700 39111135 40228596 41411790 44369775 46013100 46933362 49694148 50285745 52148180 55873050 59159700 60342894 62117685 65185225 67047660 69019650 70400043 78222270 82823580 83809575 88739550 93866724 100571490 103529475 111746100 117333405 120685788 124235370 130370450 138039300 140800086 150857235 156444540 167619150 177479100 195555675 201142980 207058950 211200129 234666810 248470740 251428725 260740900 281600172 301714470 310588425 335238300 352000215 391111350 414117900 422400258 469333620 502857450 586667025 603428940 621176850 704000430 754286175 782222700 844800516 1005714900 1056000645 1173334050 1242353700 1408000860 1508572350 1760001075 2112001290 2346668100 3017144700 3520002150 4224002580 5280003225 7040004300 10560006450 21120012900
- Sum of all divisors σ(n): 82849447296
- Sum of proper divisors (its aliquot sum) s(n): 61729434396
- 21120012900 is an abundant number, because the sum of its proper divisors (61729434396) is greater than itself. Its abundance is 40609421496
Bases of 21120012900
- Binary: 100111010101101100111010010011001002
- Hexadecimal: 0x4EAD9D264
- Base-36: 9PAB690
Squares and roots of 21120012900
- 21120012900 squared (211200129002) is 446054944896166410000
- 21120012900 cubed (211200129003) is 9420686190315823739746689000000
-
The
square root of 21120012900 is 145327.2613792747 -
The
cube root of 21120012900 is 2764.1698547851
Scales and comparisons
How big is 21120012900?- 21,120,012,900 seconds is equal to 671 years, 28 weeks, 4 days, 14 hours, 15 minutes.
-
To count from 1 to 21,120,012,900 would take you about one thousand, three hundred forty-three 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 21120012900 cubic inches would be around 230.3 feet tall.
Recreational maths with 21120012900
- 21120012900 backwards is 00921002112
- 21120012900 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21120012900's digits is 18
- More coming soon!
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