21205321344
21,205,321,344 is an even composite number composed of five prime numbers multiplied together.
21205321344 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21205321344:
27 × 33 × 31 × 43 × 4603
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 31 × 43 × 4603)See below for interesting mathematical facts about the number 21205321344 from the Numbermatics database.
Names of 21205321344
- Cardinal: 21205321344 can be written as Twenty-one billion, two hundred five million, three hundred twenty-one thousand, three hundred forty-four.
Scientific notation
- Scientific notation: 2.1205321344 × 1010
Factors of 21205321344
Divisors of 21205321344
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 43 48 54 62 64 72 86 93 96 108 124 128 129 144 172 186 192 216 248 258 279 288 344 372 384 387 432 496 516 558 576 688 744 774 837 864 992 1032 1116 1152 1161 1333 1376 1488 1548 1674 1728 1984 2064 2232 2322 2666 2752 2976 3096 3348 3456 3968 3999 4128 4464 4603 4644 5332 5504 5952 6192 6696 7998 8256 8928 9206 9288 10664 11904 11997 12384 13392 13809 15996 16512 17856 18412 18576 21328 23994 24768 26784 27618 31992 35712 35991 36824 37152 41427 42656 47988 49536 53568 55236 63984 71982 73648 74304 82854 85312 95976 107136 110472 124281 127968 142693 143964 147296 148608 165708 170624 191952 197929 220944 248562 255936 285386 287928 294592 331416 383904 395858 428079 441888 497124 511872 570772 575856 589184 593787 662832 767808 791716 856158 883776 994248 1141544 1151712 1187574 1284237 1325664 1535616 1583432 1712316 1767552 1781361 1988496 2283088 2303424 2375148 2568474 2651328 3166864 3424632 3562722 3852711 3976992 4566176 4606848 4750296 5136948 5302656 5344083 6135799 6333728 6849264 7125444 7705422 7953984 9132352 9500592 10273896 10688166 12271598 12667456 13698528 14250888 15410844 15907968 18264704 18407397 19001184 20547792 21376332 24543196 25334912 27397056 28501776 30821688 36814794 38002368 41095584 42752664 49086392 54794112 55222191 57003552 61643376 73629588 76004736 82191168 85505328 98172784 110444382 114007104 123286752 147259176 164382336 165666573 171010656 196345568 220888764 228014208 246573504 294518352 331333146 342021312 392691136 441777528 493147008 589036704 662666292 684042624 785382272 883555056 1178073408 1325332584 1767110112 2356146816 2650665168 3534220224 5301330336 7068440448 10602660672 21205321344
- Sum of all divisors σ(n): 66120806400
- Sum of proper divisors (its aliquot sum) s(n): 44915485056
- 21205321344 is an abundant number, because the sum of its proper divisors (44915485056) is greater than itself. Its abundance is 23710163712
Bases of 21205321344
- Binary: 100111011111110111110000110100000002
- Hexadecimal: 0x4EFEF8680
- Base-36: 9QP3MO0
Squares and roots of 21205321344
- 21205321344 squared (212053213442) is 449665653302301966336
- 21205321344 cubed (212053213443) is 9535304675635007971077950275584
-
The
square root of 21205321344 is 145620.4702093769 -
The
cube root of 21205321344 is 2767.8865546521
Scales and comparisons
How big is 21205321344?- 21,205,321,344 seconds is equal to 674 years, 13 weeks, 4 days, 23 hours, 2 minutes, 24 seconds.
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To count from 1 to 21,205,321,344 would take you about one thousand, three hundred forty-eight 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 21205321344 cubic inches would be around 230.7 feet tall.
Recreational maths with 21205321344
- 21205321344 backwards is 44312350212
- 21205321344 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21205321344's digits is 27
- More coming soon!
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