21009917318400
21,009,917,318,400 is an even composite number composed of five prime numbers multiplied together.
21009917318400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty-four divisors.
Prime factorization of 21009917318400:
28 × 32 × 52 × 37 × 9858257
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 37 × 9858257)See below for interesting mathematical facts about the number 21009917318400 from the Numbermatics database.
Names of 21009917318400
- Cardinal: 21009917318400 can be written as Twenty-one trillion, nine billion, nine hundred seventeen million, three hundred eighteen thousand, four hundred.
Scientific notation
- Scientific notation: 2.10099173184 × 1013
Factors of 21009917318400
Divisors of 21009917318400
- Number of divisors d(n): 324
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 37 40 45 48 50 60 64 72 74 75 80 90 96 100 111 120 128 144 148 150 160 180 185 192 200 222 225 240 256 288 296 300 320 333 360 370 384 400 444 450 480 555 576 592 600 640 666 720 740 768 800 888 900 925 960 1110 1152 1184 1200 1280 1332 1440 1480 1600 1665 1776 1800 1850 1920 2220 2304 2368 2400 2664 2775 2880 2960 3200 3330 3552 3600 3700 3840 4440 4736 4800 5328 5550 5760 5920 6400 6660 7104 7200 7400 8325 8880 9472 9600 10656 11100 11520 11840 13320 14208 14400 14800 16650 17760 19200 21312 22200 23680 26640 28416 28800 29600 33300 35520 42624 44400 47360 53280 57600 59200 66600 71040 85248 88800 106560 118400 133200 142080 177600 213120 236800 266400 355200 426240 532800 710400 1065600 2131200 9858257 19716514 29574771 39433028 49291285 59149542 78866056 88724313 98582570 118299084 147873855 157732112 177448626 197165140 236598168 246456425 295747710 315464224 354897252 364755509 394330280 443621565 473196336 492912850 591495420 630928448 709794504 729511018 739369275 788660560 887243130 946392672 985825700 1094266527 1182990840 1261856896 1419589008 1459022036 1478738550 1577321120 1774486260 1823777545 1892785344 1971651400 2188533054 2218107825 2365981680 2523713792 2839178016 2918044072 2957477100 3154642240 3282799581 3548972520 3647555090 3785570688 3943302800 4377066108 4436215650 4731963360 5471332635 5678356032 5836088144 5914954200 6309284480 6565599162 7097945040 7295110180 7571141376 7886605600 8754132216 8872431300 9118887725 9463926720 10942665270 11356712064 11672176288 11829908400 12618568960 13131198324 14195890080 14590220360 15773211200 16413997905 17508264432 17744862600 18237775450 18927853440 21885330540 22713424128 23344352576 23659816800 26262396648 27356663175 28391780160 29180440720 31546422400 32827995810 35016528864 35489725200 36475550900 37855706880 43770661080 46688705152 47319633600 52524793296 54713326350 56783560320 58360881440 63092844800 65655991620 70033057728 70979450400 72951101800 82069989525 87541322160 93377410304 94639267200 105049586592 109426652700 113567120640 116721762880 131311983240 140066115456 141958900800 145902203600 164139979050 175082644320 189278534400 210099173184 218853305400 233443525760 262623966480 280132230912 283917801600 291804407200 328279958100 350165288640 420198346368 437706610800 466887051520 525247932960 567835603200 583608814400 656559916200 700330577280 840396692736 875413221600 1050495865920 1167217628800 1313119832400 1400661154560 1750826443200 2100991731840 2334435257600 2626239664800 3501652886400 4201983463680 5252479329600 7003305772800 10504958659200 21009917318400
- Sum of all divisors σ(n): 77145344499132
- Sum of proper divisors (its aliquot sum) s(n): 56135427180732
- 21009917318400 is an abundant number, because the sum of its proper divisors (56135427180732) is greater than itself. Its abundance is 35125509862332
Bases of 21009917318400
- Binary: 1001100011011110000001010100010010101000000002
- Hexadecimal: 0x131BC0A89500
- Base-36: 7G3TMB7K0
Squares and roots of 21009917318400
- 21009917318400 squared (210099173184002) is 441416625726004246978560000
- 21009917318400 cubed (210099173184003) is 9274126809470467601826798617493504000000
-
The
square root of 21009917318400 is 4583657.6353824683 -
The
cube root of 21009917318400 is 27593.5841167479
Scales and comparisons
How big is 21009917318400?- 21,009,917,318,400 seconds is equal to 668,050 years, 19 weeks, 6 days, 8 hours.
-
To count from 1 to 21,009,917,318,400 would take you about one million, six hundred seventy thousand, one hundred twenty-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 21009917318400 cubic inches would be around 2299.5 feet tall.
Recreational maths with 21009917318400
- 21009917318400 backwards is 00481371990012
- 21009917318400 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 21009917318400's digits is 45
- More coming soon!
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