21489418240
21,489,418,240 is an even composite number composed of four prime numbers multiplied together.
21489418240 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21489418240:
215 × 5 × 31 × 4231
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 31 × 4231)See below for interesting mathematical facts about the number 21489418240 from the Numbermatics database.
Names of 21489418240
- Cardinal: 21489418240 can be written as Twenty-one billion, four hundred eighty-nine million, four hundred eighteen thousand, two hundred forty.
Scientific notation
- Scientific notation: 2.148941824 × 1010
Factors of 21489418240
Divisors of 21489418240
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 4 5 8 10 16 20 31 32 40 62 64 80 124 128 155 160 248 256 310 320 496 512 620 640 992 1024 1240 1280 1984 2048 2480 2560 3968 4096 4231 4960 5120 7936 8192 8462 9920 10240 15872 16384 16924 19840 20480 21155 31744 32768 33848 39680 40960 42310 63488 67696 79360 81920 84620 126976 131161 135392 158720 163840 169240 253952 262322 270784 317440 338480 507904 524644 541568 634880 655805 676960 1015808 1049288 1083136 1269760 1311610 1353920 2098576 2166272 2539520 2623220 2707840 4197152 4332544 5079040 5246440 5415680 8394304 8665088 10492880 10831360 16788608 17330176 20985760 21662720 33577216 34660352 41971520 43325440 67154432 69320704 83943040 86650880 134308864 138641408 167886080 173301760 268617728 335772160 346603520 537235456 671544320 693207040 1074470912 1343088640 2148941824 2686177280 4297883648 5372354560 10744709120 21489418240
- Sum of all divisors σ(n): 53250071040
- Sum of proper divisors (its aliquot sum) s(n): 31760652800
- 21489418240 is an abundant number, because the sum of its proper divisors (31760652800) is greater than itself. Its abundance is 10271234560
Bases of 21489418240
- Binary: 101000000001101111010000000000000002
- Hexadecimal: 0x500DE8000
- Base-36: 9VE8T8G
Squares and roots of 21489418240
- 21489418240 squared (214894182402) is 461795096293644697600
- 21489418240 cubed (214894182403) is 9923707965435204760684724224000
-
The
square root of 21489418240 is 146592.6950431023 -
The
cube root of 21489418240 is 2780.1926198851
Scales and comparisons
How big is 21489418240?- 21,489,418,240 seconds is equal to 683 years, 15 weeks, 3 days, 2 hours, 50 minutes, 40 seconds.
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To count from 1 to 21,489,418,240 would take you about one thousand, three hundred sixty-six 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 21489418240 cubic inches would be around 231.7 feet tall.
Recreational maths with 21489418240
- 21489418240 backwards is 04281498412
- The number of decimal digits it has is: 11
- The sum of 21489418240's digits is 43
- More coming soon!
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The information we have on file for 21489418240 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!
Keywords: Divisors of 21489418240, math, Factors of 21489418240, curriculum, school, college, exams, university, Prime factorization of 21489418240, STEM, science, technology, engineering, physics, economics, calculator, twenty-one billion, four hundred eighty-nine million, four hundred eighteen thousand, two hundred forty.