21390162665472
21,390,162,665,472 is an even composite number composed of four prime numbers multiplied together.
21390162665472 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred fifty-two divisors.
Prime factorization of 21390162665472:
213 × 32 × 612 × 77969
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 61 × 61 × 77969)See below for interesting mathematical facts about the number 21390162665472 from the Numbermatics database.
Names of 21390162665472
- Cardinal: 21390162665472 can be written as Twenty-one trillion, three hundred ninety billion, one hundred sixty-two million, six hundred sixty-five thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 2.1390162665472 × 1013
Factors of 21390162665472
Divisors of 21390162665472
- Number of divisors d(n): 252
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 32 36 48 61 64 72 96 122 128 144 183 192 244 256 288 366 384 488 512 549 576 732 768 976 1024 1098 1152 1464 1536 1952 2048 2196 2304 2928 3072 3721 3904 4096 4392 4608 5856 6144 7442 7808 8192 8784 9216 11163 11712 12288 14884 15616 17568 18432 22326 23424 24576 29768 31232 33489 35136 36864 44652 46848 59536 62464 66978 70272 73728 77969 89304 93696 119072 124928 133956 140544 155938 178608 187392 233907 238144 249856 267912 281088 311876 357216 374784 467814 476288 499712 535824 562176 623752 701721 714432 749568 935628 952576 1071648 1124352 1247504 1403442 1428864 1499136 1871256 1905152 2143296 2248704 2495008 2806884 2857728 3742512 3810304 4286592 4497408 4756109 4990016 5613768 5715456 7485024 7620608 8573184 9512218 9980032 11227536 11430912 14268327 14970048 15241216 17146368 19024436 19960064 22455072 22861824 28536654 29940096 30482432 34292736 38048872 39920128 42804981 44910144 45723648 57073308 59880192 68585472 76097744 79840256 85609962 89820288 91447296 114146616 119760384 137170944 152195488 159680512 171219924 179640576 228293232 239520768 274341888 290122649 304390976 319361024 342439848 359281152 456586464 479041536 580245298 608781952 638722048 684879696 718562304 870367947 913172928 958083072 1160490596 1217563904 1369759392 1437124608 1740735894 1826345856 1916166144 2320981192 2435127808 2611103841 2739518784 2874249216 3481471788 3652691712 4641962384 4870255616 5222207682 5479037568 5748498432 6962943576 7305383424 9283924768 9740511232 10444415364 10958075136 13925887152 14610766848 18567849536 19481022464 20888830728 21916150272 27851774304 29221533696 37135699072 38962044928 41777661456 43832300544 55703548608 58443067392 74271398144 83555322912 87664601088 111407097216 116886134784 148542796288 167110645824 175329202176 222814194432 297085592576 334221291648 350658404352 445628388864 594171185152 668442583296 891256777728 1188342370304 1336885166592 1782513555456 2376684740608 2673770333184 3565027110912 5347540666368 7130054221824 10695081332736 21390162665472
- Sum of all divisors σ(n): 62820394459290
- Sum of proper divisors (its aliquot sum) s(n): 41430231793818
- 21390162665472 is an abundant number, because the sum of its proper divisors (41430231793818) is greater than itself. Its abundance is 20040069128346
Bases of 21390162665472
- Binary: 1001101110100010010010000110000100000000000002
- Hexadecimal: 0x1374490C2000
- Base-36: 7KYI6KN40
Squares and roots of 21390162665472
- 21390162665472 squared (213901626654722) is 457539058855352215780982784
- 21390162665472 cubed (213901626654723) is 9786834894722951037203128009173183234048
-
The
square root of 21390162665472 is 4624950.0176187851 -
The
cube root of 21390162665472 is 27759.0561748943
Scales and comparisons
How big is 21390162665472?- 21,390,162,665,472 seconds is equal to 680,141 years, 3 days, 3 hours, 31 minutes, 12 seconds.
-
To count from 1 to 21,390,162,665,472 would take you about one million, seven hundred thousand, three hundred fifty-two 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 21390162665472 cubic inches would be around 2313.3 feet tall.
Recreational maths with 21390162665472
- 21390162665472 backwards is 27456626109312
- The number of decimal digits it has is: 14
- The sum of 21390162665472's digits is 54
- More coming soon!
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