21438496512
21,438,496,512 is an even composite number composed of five prime numbers multiplied together.
21438496512 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 21438496512:
28 × 32 × 23 × 137 × 2953
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 23 × 137 × 2953)See below for interesting mathematical facts about the number 21438496512 from the Numbermatics database.
Names of 21438496512
- Cardinal: 21438496512 can be written as Twenty-one billion, four hundred thirty-eight million, four hundred ninety-six thousand, five hundred twelve.
Scientific notation
- Scientific notation: 2.1438496512 × 1010
Factors of 21438496512
Divisors of 21438496512
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 23 24 32 36 46 48 64 69 72 92 96 128 137 138 144 184 192 207 256 274 276 288 368 384 411 414 548 552 576 736 768 822 828 1096 1104 1152 1233 1472 1644 1656 2192 2208 2304 2466 2944 2953 3151 3288 3312 4384 4416 4932 5888 5906 6302 6576 6624 8768 8832 8859 9453 9864 11812 12604 13152 13248 17536 17664 17718 18906 19728 23624 25208 26304 26496 26577 28359 35072 35436 37812 39456 47248 50416 52608 52992 53154 56718 67919 70872 75624 78912 94496 100832 105216 106308 113436 135838 141744 151248 157824 188992 201664 203757 212616 226872 271676 283488 302496 315648 377984 403328 404561 407514 425232 453744 543352 566976 604992 611271 755968 806656 809122 815028 850464 907488 1086704 1133952 1209984 1213683 1222542 1618244 1630056 1700928 1814976 2173408 2267904 2419968 2427366 2445084 3236488 3260112 3401856 3629952 3641049 4346816 4854732 4890168 6472976 6520224 6803712 7259904 7282098 8693632 9304903 9709464 9780336 12945952 13040448 14564196 17387264 18609806 19418928 19560672 25891904 26080896 27914709 29128392 37219612 38837856 39121344 51783808 52161792 55829418 58256784 74439224 77675712 78242688 83744127 103567616 111658836 116513568 148878448 155351424 156485376 167488254 223317672 233027136 297756896 310702848 334976508 446635344 466054272 595513792 669953016 893270688 932108544 1191027584 1339906032 1786541376 2382055168 2679812064 3573082752 5359624128 7146165504 10719248256 21438496512
- Sum of all divisors σ(n): 64992773664
- Sum of proper divisors (its aliquot sum) s(n): 43554277152
- 21438496512 is an abundant number, because the sum of its proper divisors (43554277152) is greater than itself. Its abundance is 22115780640
Bases of 21438496512
- Binary: 100111111011101010101111111000000002
- Hexadecimal: 0x4FDD57F00
- Base-36: 9UJXDS0
Squares and roots of 21438496512
- 21438496512 squared (214384965122) is 459609132695036166144
- 21438496512 cubed (214384965123) is 9853328788165878007591996489728
-
The
square root of 21438496512 is 146418.9076314939 -
The
cube root of 21438496512 is 2777.9948842011
Scales and comparisons
How big is 21438496512?- 21,438,496,512 seconds is equal to 681 years, 35 weeks, 1 day, 17 hours, 55 minutes, 12 seconds.
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To count from 1 to 21,438,496,512 would take you about one thousand, three hundred sixty-three 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 21438496512 cubic inches would be around 231.5 feet tall.
Recreational maths with 21438496512
- 21438496512 backwards is 21569483412
- The number of decimal digits it has is: 11
- The sum of 21438496512's digits is 45
- More coming soon!
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