21387007125
21,387,007,125 is an odd composite number composed of four prime numbers multiplied together.
21387007125 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21387007125:
35 × 53 × 113 × 232
(3 × 3 × 3 × 3 × 3 × 5 × 5 × 5 × 11 × 11 × 11 × 23 × 23)See below for interesting mathematical facts about the number 21387007125 from the Numbermatics database.
Names of 21387007125
- Cardinal: 21387007125 can be written as Twenty-one billion, three hundred eighty-seven million, seven thousand, one hundred twenty-five.
Scientific notation
- Scientific notation: 2.1387007125 × 1010
Factors of 21387007125
Divisors of 21387007125
- Number of divisors d(n): 288
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Complete list of divisors:
1 3 5 9 11 15 23 25 27 33 45 55 69 75 81 99 115 121 125 135 165 207 225 243 253 275 297 345 363 375 405 495 529 575 605 621 675 759 825 891 1035 1089 1125 1215 1265 1331 1375 1485 1587 1725 1815 1863 2025 2277 2475 2645 2673 2783 2875 3025 3105 3267 3375 3795 3993 4125 4455 4761 5175 5445 5589 5819 6075 6325 6655 6831 7425 7935 8349 8625 9075 9315 9801 10125 11385 11979 12375 13225 13365 13915 14283 15125 15525 16335 17457 18975 19965 20493 22275 23805 25047 25875 27225 27945 29095 29403 30375 30613 31625 33275 34155 35937 37125 39675 41745 42849 45375 46575 49005 52371 56925 59895 61479 64009 66125 66825 69575 71415 75141 77625 81675 87285 91839 94875 99825 102465 107811 111375 119025 125235 128547 136125 139725 145475 147015 153065 157113 166375 170775 179685 192027 198375 208725 214245 225423 232875 245025 261855 275517 284625 299475 307395 320045 323433 334125 347875 357075 375705 408375 436425 459195 471339 499125 512325 539055 576081 595125 626175 642735 676269 698625 704099 727375 735075 765325 785565 826551 853875 898425 960135 1043625 1071225 1127115 1225125 1309275 1377585 1414017 1497375 1536975 1600225 1617165 1728243 1785375 1878525 2112297 2182125 2295975 2356695 2479653 2561625 2695275 2880405 3130875 3213675 3381345 3520495 3675375 3826625 3927825 4132755 4492125 4800675 5184729 5356125 5635575 6336891 6546375 6887925 7070085 7438959 7684875 8001125 8085825 8641215 9392625 10561485 11479875 11783475 12398265 13476375 14402025 15554187 16068375 16906725 17602475 19010673 19639125 20663775 24003375 25923645 28177875 31684455 34439625 35350425 37194795 40429125 43206075 52807425 57032019 58917375 61991325 72010125 77770935 84533625 88012375 95053365 103318875 129618225 158422275 171096057 176752125 185973975 216030375 264037125 285160095 309956625 388854675 475266825 648091125 792111375 855480285 929869875 1425800475 1944273375 2376334125 4277401425 7129002375 21387007125
- Sum of all divisors σ(n): 45971872128
- Sum of proper divisors (its aliquot sum) s(n): 24584865003
- 21387007125 is an abundant number, because the sum of its proper divisors (24584865003) is greater than itself. Its abundance is 3197857878
Bases of 21387007125
- Binary: 100111110101100001111010100100101012
- Hexadecimal: 0x4FAC3D495
- Base-36: 9TP9SB9
Squares and roots of 21387007125
- 21387007125 squared (213870071252) is 457404073764800765625
- 21387007125 cubed (213870071253) is 9782504184611819548627330078125
-
The
square root of 21387007125 is 146242.9729081027 -
The
cube root of 21387007125 is 2775.7691074897
Scales and comparisons
How big is 21387007125?- 21,387,007,125 seconds is equal to 680 years, 2 weeks, 19 hours, 18 minutes, 45 seconds.
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To count from 1 to 21,387,007,125 would take you about one thousand, three hundred sixty 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 21387007125 cubic inches would be around 231.3 feet tall.
Recreational maths with 21387007125
- 21387007125 backwards is 52170078312
- The number of decimal digits it has is: 11
- The sum of 21387007125's digits is 36
- More coming soon!
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