21187367424
21,187,367,424 is an even composite number composed of five prime numbers multiplied together.
21187367424 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21187367424:
29 × 33 × 23 × 37 × 1801
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 23 × 37 × 1801)See below for interesting mathematical facts about the number 21187367424 from the Numbermatics database.
Names of 21187367424
- Cardinal: 21187367424 can be written as Twenty-one billion, one hundred eighty-seven million, three hundred sixty-seven thousand, four hundred twenty-four.
Scientific notation
- Scientific notation: 2.1187367424 × 1010
Factors of 21187367424
Divisors of 21187367424
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 23 24 27 32 36 37 46 48 54 64 69 72 74 92 96 108 111 128 138 144 148 184 192 207 216 222 256 276 288 296 333 368 384 414 432 444 512 552 576 592 621 666 736 768 828 851 864 888 999 1104 1152 1184 1242 1332 1472 1536 1656 1702 1728 1776 1801 1998 2208 2304 2368 2484 2553 2664 2944 3312 3404 3456 3552 3602 3996 4416 4608 4736 4968 5106 5328 5403 5888 6624 6808 6912 7104 7204 7659 7992 8832 9472 9936 10212 10656 10806 11776 13248 13616 13824 14208 14408 15318 15984 16209 17664 18944 19872 20424 21312 21612 22977 26496 27232 28416 28816 30636 31968 32418 35328 39744 40848 41423 42624 43224 45954 48627 52992 54464 56832 57632 61272 63936 64836 66637 79488 81696 82846 85248 86448 91908 97254 105984 108928 115264 122544 124269 127872 129672 133274 158976 163392 165692 170496 172896 183816 194508 199911 217856 230528 245088 248538 255744 259344 266548 317952 326784 331384 345792 367632 372807 389016 399822 435712 461056 490176 497076 511488 518688 533096 599733 653568 662768 691584 735264 745614 778032 799644 922112 980352 994152 1037376 1066192 1118421 1199466 1307136 1325536 1383168 1470528 1491228 1532651 1556064 1599288 1799199 1960704 1988304 2074752 2132384 2236842 2398932 2651072 2766336 2941056 2982456 3065302 3112128 3198576 3598398 3921408 3976608 4149504 4264768 4473684 4597953 4797864 5302144 5882112 5964912 6130604 6224256 6397152 7196796 7953216 8299008 8529536 8947368 9195906 9595728 10604288 11764224 11929824 12261208 12448512 12794304 13793859 14393592 15906432 17059072 17894736 18391812 19191456 21208576 23859648 24522416 24897024 25588608 27587718 28787184 31812864 34118144 35789472 36783624 38382912 41381577 47719296 49044832 51177216 55175436 57574368 63625728 71578944 73567248 76765824 82763154 95438592 98089664 102354432 110350872 115148736 143157888 147134496 153531648 165526308 190877184 196179328 220701744 230297472 286315776 294268992 307063296 331052616 392358656 441403488 460594944 572631552 588537984 662105232 784717312 882806976 921189888 1177075968 1324210464 1765613952 2354151936 2648420928 3531227904 5296841856 7062455808 10593683712 21187367424
- Sum of all divisors σ(n): 67248910080
- Sum of proper divisors (its aliquot sum) s(n): 46061542656
- 21187367424 is an abundant number, because the sum of its proper divisors (46061542656) is greater than itself. Its abundance is 24874175232
Bases of 21187367424
- Binary: 100111011101101110110010010000000002
- Hexadecimal: 0x4EEDD9200
- Base-36: 9QEETC0
Squares and roots of 21187367424
- 21187367424 squared (211873674242) is 448904538359576395776
- 21187367424 cubed (211873674243) is 9511105392525447326303753601024
-
The
square root of 21187367424 is 145558.8108772533 -
The
cube root of 21187367424 is 2767.1051714559
Scales and comparisons
How big is 21187367424?- 21,187,367,424 seconds is equal to 673 years, 36 weeks, 3 hours, 50 minutes, 24 seconds.
-
To count from 1 to 21,187,367,424 would take you about one thousand, three hundred forty-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 21187367424 cubic inches would be around 230.6 feet tall.
Recreational maths with 21187367424
- 21187367424 backwards is 42476378112
- The number of decimal digits it has is: 11
- The sum of 21187367424's digits is 45
- More coming soon!
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