21387492000
21,387,492,000 is an even composite number composed of five prime numbers multiplied together.
21387492000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21387492000:
25 × 32 × 53 × 7 × 84871
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 5 × 7 × 84871)See below for interesting mathematical facts about the number 21387492000 from the Numbermatics database.
Names of 21387492000
- Cardinal: 21387492000 can be written as Twenty-one billion, three hundred eighty-seven million, four hundred ninety-two thousand.
Scientific notation
- Scientific notation: 2.1387492 × 1010
Factors of 21387492000
Divisors of 21387492000
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 28 30 32 35 36 40 42 45 48 50 56 60 63 70 72 75 80 84 90 96 100 105 112 120 125 126 140 144 150 160 168 175 180 200 210 224 225 240 250 252 280 288 300 315 336 350 360 375 400 420 450 480 500 504 525 560 600 630 672 700 720 750 800 840 875 900 1000 1008 1050 1120 1125 1200 1260 1400 1440 1500 1575 1680 1750 1800 2000 2016 2100 2250 2400 2520 2625 2800 3000 3150 3360 3500 3600 4000 4200 4500 5040 5250 5600 6000 6300 7000 7200 7875 8400 9000 10080 10500 12000 12600 14000 15750 16800 18000 21000 25200 28000 31500 36000 42000 50400 63000 84000 84871 126000 169742 252000 254613 339484 424355 509226 594097 678968 763839 848710 1018452 1188194 1273065 1357936 1527678 1697420 1782291 2036904 2121775 2376388 2546130 2715872 2970485 3055356 3394840 3564582 3819195 4073808 4243550 4752776 5092260 5346873 5940970 6110712 6365325 6789680 7129164 7638390 8147616 8487100 8911455 9505552 10184520 10608875 10693746 11881940 12221424 12730650 13579360 14258328 14852425 15276780 16974200 17822910 19011104 19095975 20369040 21217750 21387492 23763880 24442848 25461300 26734365 28516656 29704850 30553560 31826625 33948400 35645820 38191950 40738080 42435500 42774984 44557275 47527760 50922600 53468730 57033312 59409700 61107120 63653250 67896800 71291640 74262125 76383900 84871000 85549968 89114550 95055520 95479875 101845200 106937460 118819400 122214240 127306500 133671825 142583280 148524250 152767800 169742000 171099936 178229100 190959750 203690400 213874920 222786375 237638800 254613000 267343650 285166560 297048500 305535600 339484000 356458200 381919500 427749840 445572750 475277600 509226000 534687300 594097000 611071200 668359125 712916400 763839000 855499680 891145500 1018452000 1069374600 1188194000 1336718250 1425832800 1527678000 1782291000 2138749200 2376388000 2673436500 3055356000 3564582000 4277498400 5346873000 7129164000 10693746000 21387492000
- Sum of all divisors σ(n): 86748689664
- Sum of proper divisors (its aliquot sum) s(n): 65361197664
- 21387492000 is an abundant number, because the sum of its proper divisors (65361197664) is greater than itself. Its abundance is 43973705664
Bases of 21387492000
- Binary: 100111110101100101100111010101000002
- Hexadecimal: 0x4FACB3AA0
- Base-36: 9TPK6G0
Squares and roots of 21387492000
- 21387492000 squared (213874920002) is 457424814050064000000
- 21387492000 cubed (213874920003) is 9783169551097231399488000000000
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The
square root of 21387492000 is 146244.6306706677 -
The
cube root of 21387492000 is 2775.7900842579
Scales and comparisons
How big is 21387492000?- 21,387,492,000 seconds is equal to 680 years, 2 weeks, 6 days, 10 hours.
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To count from 1 to 21,387,492,000 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 21387492000 cubic inches would be around 231.3 feet tall.
Recreational maths with 21387492000
- 21387492000 backwards is 00029478312
- 21387492000 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21387492000's digits is 36
- More coming soon!
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The information we have on file for 21387492000 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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