21209681516400
21,209,681,516,400 is an even composite number composed of six prime numbers multiplied together.
21209681516400 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 21209681516400:
24 × 32 × 52 × 13 × 5261 × 86143
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 13 × 5261 × 86143)See below for interesting mathematical facts about the number 21209681516400 from the Numbermatics database.
Names of 21209681516400
- Cardinal: 21209681516400 can be written as Twenty-one trillion, two hundred nine billion, six hundred eighty-one million, five hundred sixteen thousand, four hundred.
Scientific notation
- Scientific notation: 2.12096815164 × 1013
Factors of 21209681516400
Divisors of 21209681516400
- Number of divisors d(n): 360
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 25 26 30 36 39 40 45 48 50 52 60 65 72 75 78 80 90 100 104 117 120 130 144 150 156 180 195 200 208 225 234 240 260 300 312 325 360 390 400 450 468 520 585 600 624 650 720 780 900 936 975 1040 1170 1200 1300 1560 1800 1872 1950 2340 2600 2925 3120 3600 3900 4680 5200 5261 5850 7800 9360 10522 11700 15600 15783 21044 23400 26305 31566 42088 46800 47349 52610 63132 68393 78915 84176 86143 94698 105220 126264 131525 136786 157830 172286 189396 205179 210440 236745 252528 258429 263050 273572 315660 341965 344572 378792 394575 410358 420880 430715 473490 516858 526100 547144 615537 631320 683930 689144 757584 775287 789150 820716 861430 946980 1025895 1033716 1052200 1094288 1119859 1183725 1231074 1262640 1292145 1367860 1378288 1550574 1578300 1641432 1709825 1722860 1893960 2051790 2067432 2104400 2153575 2239718 2367450 2462148 2584290 2735720 3077685 3101148 3156600 3282864 3359577 3419650 3445720 3787920 3876435 4103580 4134864 4307150 4479436 4734900 4924296 5129475 5168580 5471440 5599295 6155370 6202296 6313200 6460725 6719154 6839300 6891440 7752870 8207160 8614300 8958872 9469800 9848592 10078731 10258950 10337160 11198590 12310740 12404592 12921450 13438308 13678600 15388425 15505740 16414320 16797885 17228600 17917744 18939600 19382175 20157462 20517900 20674320 22397180 24621480 25842900 26876616 27357200 27996475 30776850 31011480 33595770 34457200 38764350 40314924 41035800 44794360 49242960 50393655 51685800 53753232 55992950 61553700 62022960 67191540 77528700 80629848 82071600 83989425 89588720 100787310 103371600 111985900 123107400 134383080 155057400 161259696 167978850 201574620 223971800 246214800 251968275 268766160 310114800 335957700 403149240 447943600 453198323 503936550 671915400 806298480 906396646 1007873100 1343830800 1359594969 1812793292 2015746200 2265991615 2719189938 3625586584 4031492400 4078784907 4531983230 5438379876 5891578199 6797974845 7251173168 8157569814 9063966460 10876759752 11329958075 11783156398 13595949690 16315139628 17674734597 18127932920 20393924535 21753519504 22659916150 23566312796 27191899380 29457890995 32630279256 33989874225 35349469194 36255865840 40787849070 45319832300 47132625592 53024203791 54383798760 58915781990 65260558512 67979748450 70698938388 81575698140 88373672985 90639664600 94265251184 101969622675 106048407582 108767597520 117831563980 135959496900 141397876776 147289454975 163151396280 176747345970 181279329200 203939245350 212096815164 235663127960 265121018955 271918993800 282795753552 294578909950 326302792560 353494691940 407878490700 424193630328 441868364925 471326255920 530242037910 543837987600 589157819900 706989383880 815756981400 848387260656 883736729850 1060484075820 1178315639800 1325605094775 1413978767760 1631513962800 1767473459700 2120968151640 2356631279600 2651210189550 3534946919400 4241936303280 5302420379100 7069893838800 10604840758200 21209681516400
- Sum of all divisors σ(n): 79281280006656
- Sum of proper divisors (its aliquot sum) s(n): 58071598490256
- 21209681516400 is an abundant number, because the sum of its proper divisors (58071598490256) is greater than itself. Its abundance is 36861916973856
Bases of 21209681516400
- Binary: 1001101001010010000111000100001010111011100002
- Hexadecimal: 0x134A43885770
- Base-36: 7INLCR980
Squares and roots of 21209681516400
- 21209681516400 squared (212096815164002) is 449850590027119803468960000
- 21209681516400 cubed (212096815164003) is 9541187744439837070364001513130944000000
-
The
square root of 21209681516400 is 4605396.9987830583 -
The
cube root of 21209681516400 is 27680.7624973375
Scales and comparisons
How big is 21209681516400?- 21,209,681,516,400 seconds is equal to 674,402 years, 13 weeks, 5 days, 23 hours.
-
To count from 1 to 21,209,681,516,400 would take you about one million, six hundred eighty-six thousand and 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 21209681516400 cubic inches would be around 2306.7 feet tall.
Recreational maths with 21209681516400
- 21209681516400 backwards is 00461518690212
- 21209681516400 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 21209681516400's digits is 45
- More coming soon!
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