21438971568
21,438,971,568 is an even composite number composed of six prime numbers multiplied together.
21438971568 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21438971568:
24 × 33 × 72 × 31 × 37 × 883
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 7 × 7 × 31 × 37 × 883)See below for interesting mathematical facts about the number 21438971568 from the Numbermatics database.
Names of 21438971568
- Cardinal: 21438971568 can be written as Twenty-one billion, four hundred thirty-eight million, nine hundred seventy-one thousand, five hundred sixty-eight.
Scientific notation
- Scientific notation: 2.1438971568 × 1010
Factors of 21438971568
Divisors of 21438971568
- Number of divisors d(n): 480
-
Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 31 36 37 42 48 49 54 56 62 63 72 74 84 93 98 108 111 112 124 126 144 147 148 168 186 189 196 216 217 222 248 252 259 279 294 296 333 336 372 378 392 432 434 441 444 496 504 518 558 588 592 651 666 744 756 777 784 837 868 882 883 888 999 1008 1036 1116 1147 1176 1302 1323 1332 1488 1512 1519 1554 1674 1736 1764 1766 1776 1813 1953 1998 2072 2232 2294 2331 2352 2604 2646 2649 2664 3024 3038 3108 3348 3441 3472 3528 3532 3626 3906 3996 4144 4464 4557 4588 4662 5208 5292 5298 5328 5439 5859 6076 6181 6216 6696 6882 6993 7056 7064 7252 7812 7947 7992 8029 9114 9176 9324 10323 10416 10584 10596 10878 11718 12152 12362 12432 13392 13671 13764 13986 14128 14504 15624 15894 15984 16058 16317 18228 18352 18543 18648 20646 21168 21192 21756 23436 23841 24087 24304 24724 27342 27373 27528 27972 29008 30969 31248 31788 32116 32634 32671 36456 37086 37296 41013 41292 42384 43267 43512 46872 47682 48174 48951 49448 54684 54746 55056 55629 55944 56203 61938 63576 64232 65268 65342 72261 72912 74172 82026 82119 82584 86534 87024 93744 95364 96348 97902 98013 98896 109368 109492 111258 111888 112406 123876 127152 128464 129801 130536 130684 144522 148344 164052 164238 165168 166887 168609 173068 190728 191611 192696 195804 196026 216783 218736 218984 222516 224812 228697 246357 247752 259602 261072 261368 289044 294039 296688 328104 328476 333774 337218 346136 381456 383222 385392 389403 391608 392052 433566 437968 445032 449624 457394 492714 495504 505827 519204 522736 574833 578088 588078 656208 656952 667548 674436 686091 692272 739071 766444 778806 783216 784104 867132 882117 890064 899248 914788 985428 1011654 1012801 1038408 1149666 1156176 1168209 1176156 1313904 1335096 1341277 1348872 1372182 1478142 1517481 1532888 1557612 1568208 1600879 1724499 1734264 1764234 1829576 1970856 2023308 2025602 2058273 2076816 2299332 2336418 2352312 2670192 2682554 2697744 2744364 2956284 3034962 3038403 3065776 3115224 3201758 3448998 3468528 3528468 3659152 3941712 4023831 4046616 4051204 4116546 4598664 4672836 4704624 4802637 5173497 5365108 5488728 5912568 6069924 6076806 6174819 6230448 6403516 6897996 7056936 7089607 8047662 8093232 8102408 8233092 9115209 9197328 9345672 9605274 10346994 10730216 10977456 11825136 12071493 12139848 12153612 12349638 12807032 13795992 14113872 14179214 14407911 16095324 16204816 16466184 18230418 18691344 19210548 20693988 21268821 21460432 24142986 24279696 24307224 24699276 25614064 27345627 27591984 28358428 28815822 32190648 32932368 36214479 36460836 38421096 41387976 42537642 43223733 48285972 48614448 49398552 49627249 54691254 56716856 57631644 63806463 64381296 72428958 72921672 76842192 82775952 85075284 86447466 96571944 98797104 99254498 109382508 113433712 115263288 127612926 144857916 145843344 148881747 170150568 172894932 191419389 193143888 198508996 218765016 230526576 255225852 289715832 297763494 340301136 345789864 382838778 397017992 437530032 446645241 510451704 579431664 595526988 691579728 765677556 794035984 893290482 1020903408 1191053976 1339935723 1531355112 1786580964 2382107952 2679871446 3062710224 3573161928 5359742892 7146323856 10719485784 21438971568
- Sum of all divisors σ(n): 75977041920
- Sum of proper divisors (its aliquot sum) s(n): 54538070352
- 21438971568 is an abundant number, because the sum of its proper divisors (54538070352) is greater than itself. Its abundance is 33099098784
Bases of 21438971568
- Binary: 100111111011101110010111110101100002
- Hexadecimal: 0x4FDDCBEB0
- Base-36: 9UK7KC0
Squares and roots of 21438971568
- 21438971568 squared (214389715682) is 459629501893512378624
- 21438971568 cubed (214389715683) is 9853983822909014048975986962432
-
The
square root of 21438971568 is 146420.5298720093 -
The
cube root of 21438971568 is 2778.0154032611
Scales and comparisons
How big is 21438971568?- 21,438,971,568 seconds is equal to 681 years, 36 weeks, 5 hours, 52 minutes, 48 seconds.
-
To count from 1 to 21,438,971,568 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 21438971568 cubic inches would be around 231.5 feet tall.
Recreational maths with 21438971568
- 21438971568 backwards is 86517983412
- 21438971568 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21438971568's digits is 54
- More coming soon!
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