21138941824
21,138,941,824 is an even composite number composed of five prime numbers multiplied together.
21138941824 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21138941824:
27 × 74 × 11 × 132 × 37
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 7 × 7 × 7 × 11 × 13 × 13 × 37)See below for interesting mathematical facts about the number 21138941824 from the Numbermatics database.
Names of 21138941824
- Cardinal: 21138941824 can be written as Twenty-one billion, one hundred thirty-eight million, nine hundred forty-one thousand, eight hundred twenty-four.
Scientific notation
- Scientific notation: 2.1138941824 × 1010
Factors of 21138941824
Divisors of 21138941824
- Number of divisors d(n): 480
-
Complete list of divisors:
1 2 4 7 8 11 13 14 16 22 26 28 32 37 44 49 52 56 64 74 77 88 91 98 104 112 128 143 148 154 169 176 182 196 208 224 259 286 296 308 338 343 352 364 392 407 416 448 481 518 539 572 592 616 637 676 686 704 728 784 814 832 896 962 1001 1036 1078 1144 1183 1184 1232 1274 1352 1372 1408 1456 1568 1628 1664 1813 1859 1924 2002 2072 2156 2288 2366 2368 2401 2464 2548 2704 2744 2849 2912 3136 3256 3367 3626 3718 3773 3848 4004 4144 4312 4459 4576 4732 4736 4802 4928 5096 5291 5408 5488 5698 5824 6253 6272 6512 6734 7007 7252 7436 7546 7696 8008 8281 8288 8624 8918 9152 9464 9604 9856 10192 10582 10816 10976 11396 11648 12506 12691 13013 13024 13468 14014 14504 14872 15092 15392 16016 16562 16576 17248 17836 18304 18928 19208 19943 20384 21164 21632 21952 22792 23569 25012 25382 26026 26048 26411 26936 28028 29008 29744 30184 30784 31213 32032 33124 33152 34496 35672 37037 37856 38416 39886 40768 42328 43771 43904 45584 47138 49049 50024 50764 52052 52096 52822 53872 56056 57967 58016 59488 60368 61568 62426 64064 66248 68783 68992 71344 74074 75712 76832 79772 81536 84656 87542 88837 91091 91168 94276 98098 100048 101528 104104 105644 107744 112112 115934 116032 118976 120736 124852 128128 132496 137566 139601 142688 148148 151424 153664 159544 164983 169312 175084 177674 182182 182336 188552 196196 200096 203056 208208 211288 215488 224224 231868 232064 237952 241472 249704 259259 264992 275132 279202 285376 296296 306397 307328 319088 329966 338624 343343 350168 355348 364364 364672 377104 392392 400192 405769 406112 416416 422576 430976 448448 463736 481481 482944 499408 518518 529984 550264 558404 570752 592592 612794 637637 638176 659932 677248 686686 700336 710696 728728 754208 784784 800384 811538 812224 832832 845152 896896 927472 962962 977207 998816 1037036 1059968 1100528 1116808 1154881 1185184 1225588 1275274 1276352 1319864 1373372 1400672 1421392 1457456 1508416 1569568 1623076 1624448 1665664 1690304 1814813 1854944 1925924 1954414 1997632 2074072 2144779 2201056 2233616 2309762 2370368 2451176 2550548 2552704 2639728 2746744 2801344 2842784 2914912 3016832 3139136 3246152 3370367 3380608 3629626 3709888 3851848 3908828 3995264 4148144 4289558 4402112 4463459 4467232 4619524 4740736 4902352 5101096 5279456 5493488 5602688 5685568 5829824 6278272 6492304 6740734 7259252 7419776 7703696 7817656 8296288 8579116 8804224 8926918 8934464 9239048 9804704 10202192 10558912 10986976 11371136 11659648 12703691 12984608 13481468 14518504 15013453 15407392 15635312 16592576 17158232 17853836 17868928 18478096 19609408 20404384 21117824 21973952 23592569 25407382 25969216 26962936 29037008 30026906 30814784 31270624 33185152 34316464 35707672 36956192 39218816 40808768 43947904 47185138 50814764 51938432 53925872 58074016 60053812 61629568 62541248 68632928 71415344 73912384 81617536 94370276 101629528 107851744 116148032 120107624 125082496 137265856 142830688 147824768 165147983 188740552 203259056 215703488 232296064 240215248 274531712 285661376 330295966 377481104 406518112 431406976 480430496 571322752 660591932 754962208 813036224 960860992 1321183864 1509924416 1626072448 1921721984 2642367728 3019848832 5284735456 10569470912 21138941824
- Sum of all divisors σ(n): 59603151240
- Sum of proper divisors (its aliquot sum) s(n): 38464209416
- 21138941824 is an abundant number, because the sum of its proper divisors (38464209416) is greater than itself. Its abundance is 17325267592
Bases of 21138941824
- Binary: 100111010111111101010100111100000002
- Hexadecimal: 0x4EBFAA780
- Base-36: 9PLKVWG
Squares and roots of 21138941824
- 21138941824 squared (211389418242) is 446854861438456446976
- 21138941824 cubed (211389418243) is 9446038919719111788983404724224
-
The
square root of 21138941824 is 145392.3719594669 -
The
cube root of 21138941824 is 2764.9954088477
Scales and comparisons
How big is 21138941824?- 21,138,941,824 seconds is equal to 672 years, 7 weeks, 6 days, 16 hours, 17 minutes, 4 seconds.
-
To count from 1 to 21,138,941,824 would take you about one thousand, three hundred forty-four 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 21138941824 cubic inches would be around 230.4 feet tall.
Recreational maths with 21138941824
- 21138941824 backwards is 42814983112
- The number of decimal digits it has is: 11
- The sum of 21138941824's digits is 43
- More coming soon!
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