21406347840
21,406,347,840 is an even composite number composed of six prime numbers multiplied together.
21406347840 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred twenty-four divisors.
Prime factorization of 21406347840:
26 × 3 × 5 × 127 × 337 × 521
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 127 × 337 × 521)See below for interesting mathematical facts about the number 21406347840 from the Numbermatics database.
Names of 21406347840
- Cardinal: 21406347840 can be written as Twenty-one billion, four hundred six million, three hundred forty-seven thousand, eight hundred forty.
Scientific notation
- Scientific notation: 2.140634784 × 1010
Factors of 21406347840
Divisors of 21406347840
- Number of divisors d(n): 224
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 127 160 192 240 254 320 337 381 480 508 521 635 674 762 960 1011 1016 1042 1270 1348 1524 1563 1685 1905 2022 2032 2084 2540 2605 2696 3048 3126 3370 3810 4044 4064 4168 5055 5080 5210 5392 6096 6252 6740 7620 7815 8088 8128 8336 10110 10160 10420 10784 12192 12504 13480 15240 15630 16176 16672 20220 20320 20840 21568 24384 25008 26960 30480 31260 32352 33344 40440 40640 41680 42799 50016 53920 60960 62520 64704 66167 80880 83360 85598 100032 107840 121920 125040 128397 132334 161760 166720 171196 175577 198501 213995 250080 256794 264668 323520 330835 342392 351154 397002 427990 500160 513588 526731 529336 641985 661670 684784 702308 794004 855980 877885 992505 1027176 1053462 1058672 1283970 1323340 1369568 1404616 1588008 1711960 1755770 1985010 2054352 2106924 2117344 2567940 2633655 2646680 2739136 2809232 3176016 3423920 3511540 3970020 4108704 4213848 4234688 5135880 5267310 5293360 5618464 6352032 6847840 7023080 7940040 8217408 8427696 10271760 10534620 10586720 11236928 12704064 13695680 14046160 15880080 16855392 20543520 21069240 21173440 22298279 28092320 31760160 33710784 41087040 42138480 44596558 56184640 63520320 66894837 84276960 89193116 111491395 133789674 168553920 178386232 222982790 267579348 334474185 356772464 445965580 535158696 668948370 713544928 891931160 1070317392 1337896740 1427089856 1783862320 2140634784 2675793480 3567724640 4281269568 5351586960 7135449280 10703173920 21406347840
- Sum of all divisors σ(n): 68835446784
- Sum of proper divisors (its aliquot sum) s(n): 47429098944
- 21406347840 is an abundant number, because the sum of its proper divisors (47429098944) is greater than itself. Its abundance is 26022751104
Bases of 21406347840
- Binary: 100111110111110101011110010010000002
- Hexadecimal: 0x4FBEAF240
- Base-36: 9U0SBPC
Squares and roots of 21406347840
- 21406347840 squared (214063478402) is 458231727847072665600
- 21406347840 cubed (214063478403) is 9809067757618651805589602304000
-
The
square root of 21406347840 is 146309.0832450261 -
The
cube root of 21406347840 is 2776.6055839557
Scales and comparisons
How big is 21406347840?- 21,406,347,840 seconds is equal to 680 years, 34 weeks, 15 hours, 44 minutes.
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To count from 1 to 21,406,347,840 would take you about one thousand, three hundred sixty-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 21406347840 cubic inches would be around 231.4 feet tall.
Recreational maths with 21406347840
- 21406347840 backwards is 04874360412
- The number of decimal digits it has is: 11
- The sum of 21406347840's digits is 39
- More coming soon!
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