21216162816
21,216,162,816 is an even composite number composed of four prime numbers multiplied together.
21216162816 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of three hundred eight divisors.
Prime factorization of 21216162816:
210 × 36 × 97 × 293
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 97 × 293)See below for interesting mathematical facts about the number 21216162816 from the Numbermatics database.
Names of 21216162816
- Cardinal: 21216162816 can be written as Twenty-one billion, two hundred sixteen million, one hundred sixty-two thousand, eight hundred sixteen.
Scientific notation
- Scientific notation: 2.1216162816 × 1010
Factors of 21216162816
Divisors of 21216162816
- Number of divisors d(n): 308
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 97 108 128 144 162 192 194 216 243 256 288 291 293 324 384 388 432 486 512 576 582 586 648 729 768 776 864 873 879 972 1024 1152 1164 1172 1296 1458 1536 1552 1728 1746 1758 1944 2304 2328 2344 2592 2619 2637 2916 3072 3104 3456 3492 3516 3888 4608 4656 4688 5184 5238 5274 5832 6208 6912 6984 7032 7776 7857 7911 9216 9312 9376 10368 10476 10548 11664 12416 13824 13968 14064 15552 15714 15822 18624 18752 20736 20952 21096 23328 23571 23733 24832 27648 27936 28128 28421 31104 31428 31644 37248 37504 41472 41904 42192 46656 47142 47466 49664 55872 56256 56842 62208 62856 63288 70713 71199 74496 75008 82944 83808 84384 85263 93312 94284 94932 99328 111744 112512 113684 124416 125712 126576 141426 142398 148992 150016 167616 168768 170526 186624 188568 189864 213597 223488 225024 227368 248832 251424 253152 255789 282852 284796 297984 300032 335232 337536 341052 373248 377136 379728 427194 446976 450048 454736 502848 506304 511578 565704 569592 670464 675072 682104 746496 754272 759456 767367 854388 893952 900096 909472 1005696 1012608 1023156 1131408 1139184 1340928 1350144 1364208 1508544 1518912 1534734 1708776 1818944 2011392 2025216 2046312 2262816 2278368 2302101 2681856 2700288 2728416 3017088 3037824 3069468 3417552 3637888 4022784 4050432 4092624 4525632 4556736 4604202 5456832 6034176 6075648 6138936 6835104 6906303 7275776 8045568 8100864 8185248 9051264 9113472 9208404 10913664 12068352 12151296 12277872 13670208 13812606 14551552 16370496 18102528 18226944 18416808 20718909 21827328 24136704 24302592 24555744 27340416 27625212 29103104 32740992 36205056 36453888 36833616 41437818 43654656 49111488 54680832 55250424 65481984 72410112 72907776 73667232 82875636 87309312 98222976 109361664 110500848 130963968 147334464 165751272 196445952 218723328 221001696 261927936 294668928 331502544 392891904 442003392 589337856 663005088 785783808 884006784 1178675712 1326010176 1768013568 2357351424 2652020352 3536027136 5304040704 7072054272 10608081408 21216162816
- Sum of all divisors σ(n): 64463133252
- Sum of proper divisors (its aliquot sum) s(n): 43246970436
- 21216162816 is an abundant number, because the sum of its proper divisors (43246970436) is greater than itself. Its abundance is 22030807620
Bases of 21216162816
- Binary: 100111100001001010011110100000000002
- Hexadecimal: 0x4F094F400
- Base-36: 9QVK000
Squares and roots of 21216162816
- 21216162816 squared (212161628162) is 450125564635021049856
- 21216162816 cubed (212161628163) is 9549937266940538209332149354496
-
The
square root of 21216162816 is 145657.6905487657 -
The
cube root of 21216162816 is 2768.3581792279
Scales and comparisons
How big is 21216162816?- 21,216,162,816 seconds is equal to 674 years, 31 weeks, 4 days, 10 hours, 33 minutes, 36 seconds.
-
To count from 1 to 21,216,162,816 would take you about one thousand, three hundred forty-nine 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 21216162816 cubic inches would be around 230.7 feet tall.
Recreational maths with 21216162816
- 21216162816 backwards is 61826161212
- 21216162816 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21216162816's digits is 36
- More coming soon!
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