21345870384
21,345,870,384 is an even composite number composed of five prime numbers multiplied together.
21345870384 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred sixty divisors.
Prime factorization of 21345870384:
24 × 35 × 29 × 312 × 197
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 29 × 31 × 31 × 197)See below for interesting mathematical facts about the number 21345870384 from the Numbermatics database.
Names of 21345870384
- Cardinal: 21345870384 can be written as Twenty-one billion, three hundred forty-five million, eight hundred seventy thousand, three hundred eighty-four.
Scientific notation
- Scientific notation: 2.1345870384 × 1010
Factors of 21345870384
Divisors of 21345870384
- Number of divisors d(n): 360
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 29 31 36 48 54 58 62 72 81 87 93 108 116 124 144 162 174 186 197 216 232 243 248 261 279 324 348 372 394 432 464 486 496 522 558 591 648 696 744 783 788 837 899 961 972 1044 1116 1182 1296 1392 1488 1566 1576 1674 1773 1798 1922 1944 2088 2232 2349 2364 2511 2697 2883 3132 3152 3348 3546 3596 3844 3888 4176 4464 4698 4728 5022 5319 5394 5713 5766 6107 6264 6696 7047 7092 7192 7533 7688 8091 8649 9396 9456 10044 10638 10788 11426 11532 12214 12528 13392 14094 14184 14384 15066 15376 15957 16182 17139 17298 18321 18792 20088 21276 21576 22852 23064 24273 24428 25947 27869 28188 28368 30132 31914 32364 34278 34596 36642 37584 40176 42552 43152 45704 46128 47871 48546 48856 51417 51894 54963 55738 56376 60264 63828 64728 68556 69192 72819 73284 77841 83607 85104 91408 95742 97092 97712 102834 103788 109926 111476 112752 120528 127656 129456 137112 138384 145638 146568 154251 155682 164889 167214 177103 189317 191484 194184 205668 207576 218457 219852 222952 233523 250821 255312 274224 291276 293136 308502 311364 329778 334428 354206 378634 382968 388368 411336 415152 436914 439704 445904 462753 467046 494667 501642 531309 567951 582552 617004 622728 659556 668856 708412 752463 757268 765936 822672 873828 879408 925506 934092 989334 1003284 1062618 1135902 1165104 1234008 1245456 1319112 1337712 1388259 1416824 1484001 1504926 1514536 1593927 1703853 1747656 1851012 1868184 1978668 2006568 2125236 2257389 2271804 2468016 2638224 2776518 2833648 2968002 3009852 3029072 3187854 3407706 3495312 3702024 3736368 3957336 4013136 4250472 4514778 4543608 4781781 5111559 5490193 5553036 5936004 6019704 6375708 6772167 6815412 7404048 7914672 8500944 9029556 9087216 9563562 10223118 10980386 11106072 11872008 12039408 12751416 13544334 13630824 14345343 15334677 16470579 18059112 19127124 20446236 21960772 22212144 23744016 25502832 27088668 27261648 28690686 30669354 32941158 36118224 38254248 40892472 43036029 43921544 46004031 49411737 54177336 57381372 61338708 65882316 76508496 81784944 86072058 87843088 92008062 98823474 108354672 114762744 122677416 131764632 148235211 172144116 184016124 197646948 229525488 245354832 263529264 296470422 344288232 368032248 395293896 444705633 592940844 688576464 736064496 790587792 889411266 1185881688 1334116899 1778822532 2371763376 2668233798 3557645064 5336467596 7115290128 10672935192 21345870384
- Sum of all divisors σ(n): 66557771280
- Sum of proper divisors (its aliquot sum) s(n): 45211900896
- 21345870384 is an abundant number, because the sum of its proper divisors (45211900896) is greater than itself. Its abundance is 23866030512
Bases of 21345870384
- Binary: 100111110000101000000100010001100002
- Hexadecimal: 0x4F8502230
- Base-36: 9T0S300
Squares and roots of 21345870384
- 21345870384 squared (213458703842) is 455646182450528307456
- 21345870384 cubed (213458703843) is 9726164351553392743278676783104
-
The
square root of 21345870384 is 146102.2600235875 -
The
cube root of 21345870384 is 2773.9882850999
Scales and comparisons
How big is 21345870384?- 21,345,870,384 seconds is equal to 678 years, 38 weeks, 16 hours, 26 minutes, 24 seconds.
-
To count from 1 to 21,345,870,384 would take you about one thousand, three hundred fifty-seven 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 21345870384 cubic inches would be around 231.2 feet tall.
Recreational maths with 21345870384
- 21345870384 backwards is 48307854312
- The number of decimal digits it has is: 11
- The sum of 21345870384's digits is 45
- More coming soon!
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