21388955616
21,388,955,616 is an even composite number composed of seven prime numbers multiplied together.
21388955616 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of five hundred seventy-six divisors.
Prime factorization of 21388955616:
25 × 32 × 7 × 23 × 71 × 73 × 89
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 7 × 23 × 71 × 73 × 89)See below for interesting mathematical facts about the number 21388955616 from the Numbermatics database.
Names of 21388955616
- Cardinal: 21388955616 can be written as Twenty-one billion, three hundred eighty-eight million, nine hundred fifty-five thousand, six hundred sixteen.
Scientific notation
- Scientific notation: 2.1388955616 × 1010
Factors of 21388955616
Divisors of 21388955616
- Number of divisors d(n): 576
-
Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 23 24 28 32 36 42 46 48 56 63 69 71 72 73 84 89 92 96 112 126 138 142 144 146 161 168 178 184 207 213 219 224 252 267 276 284 288 292 322 336 356 368 414 426 438 483 497 504 511 534 552 568 584 623 639 644 657 672 712 736 801 828 852 876 966 994 1008 1022 1068 1104 1136 1168 1246 1278 1288 1314 1424 1449 1491 1533 1602 1633 1656 1679 1704 1752 1869 1932 1988 2016 2044 2047 2136 2208 2272 2336 2492 2556 2576 2628 2848 2898 2982 3066 3204 3266 3312 3358 3408 3504 3738 3864 3976 4088 4094 4272 4473 4599 4899 4984 5037 5112 5152 5183 5256 5607 5796 5964 6132 6141 6319 6408 6497 6532 6624 6716 6816 7008 7476 7728 7952 8176 8188 8544 8946 9198 9798 9968 10074 10224 10366 10512 11214 11431 11592 11753 11928 12264 12282 12638 12816 12994 13064 13432 14329 14697 14952 15111 15456 15549 15904 16352 16376 17892 18396 18423 18957 19491 19596 19936 20148 20448 20732 21024 22428 22862 23184 23506 23856 24528 24564 25276 25632 25988 26128 26864 28658 29394 29904 30222 31098 32752 34293 35259 35784 36281 36792 36846 37914 38982 39192 40296 41464 42987 44233 44856 45479 45724 46368 46647 47012 47712 49056 49128 50552 51976 52256 53728 56871 57316 58473 58788 59808 60444 62196 65504 68586 70518 71568 72562 73584 73692 75828 77964 78384 80592 82928 85974 88466 89712 90958 91448 93294 94024 98256 101104 102879 103952 105777 108843 113742 114632 116946 117576 119209 120888 124392 128961 132699 136437 137172 141036 143136 145124 145337 147168 147384 149431 151656 155928 156768 161184 165856 171948 176932 179424 181916 182896 186588 188048 196512 202208 205758 207904 211554 217686 227484 229264 233892 235152 238418 241776 248784 257922 265398 272874 274344 282072 290248 290674 294768 298862 303312 311856 326529 343896 353864 357627 363832 365792 373176 376096 398097 409311 411516 423108 435372 436011 448293 454968 458528 461287 467784 470304 476836 483552 497568 515844 530796 545748 548688 564144 580496 581348 589536 597724 606624 623712 653058 687792 707728 715254 727664 746352 796194 818622 823032 834463 846216 870744 872022 896586 909936 922574 935568 953672 1017359 1031688 1046017 1061592 1072881 1091496 1097376 1128288 1160992 1162696 1195448 1306116 1308033 1344879 1375584 1383861 1415456 1430508 1455328 1492704 1592388 1637244 1646064 1668926 1692432 1741488 1744044 1793172 1819872 1845148 1871136 1907344 2034718 2063376 2092034 2123184 2145762 2182992 2325392 2390896 2503389 2612232 2616066 2689758 2767722 2861016 3052077 3138051 3184776 3229009 3274488 3292128 3337852 3384864 3482976 3488088 3586344 3690296 3814688 4069436 4126752 4151583 4184068 4246368 4291524 4365984 4650784 4781792 5006778 5224464 5232132 5379516 5535444 5722032 6104154 6276102 6369552 6458018 6548976 6675704 6976176 7172688 7380592 7510167 8138872 8303166 8368136 8583048 9156231 9414153 9687027 10013556 10448928 10464264 10609601 10759032 11070888 11444064 12208308 12552204 12739104 12916036 13097952 13351408 13952352 14345376 14761184 15020334 16277744 16606332 16736272 17166096 18312462 18828306 19374054 20027112 20928528 21219202 21518064 22141776 24416616 25104408 25832072 26702816 29061081 30040668 31828803 32555488 33212664 33472544 34332192 36624924 37656612 38748108 40054224 41857056 42438404 43036128 44283552 48833232 50208816 51664144 58122162 60081336 63657606 66425328 73249848 74267207 75313224 77496216 80108448 84876808 95486409 97666464 100417632 103328288 116244324 120162672 127315212 132850656 146499696 148534414 150626448 154992432 169753616 190972818 222801621 232488648 240325344 254630424 292999392 297068828 301252896 309984864 339507232 381945636 445603242 464977296 509260848 594137656 668404863 763891272 891206484 929954592 1018521696 1188275312 1336809726 1527782544 1782412968 2376550624 2673619452 3055565088 3564825936 5347238904 7129651872 10694477808 21388955616
- Sum of all divisors σ(n): 75403560960
- Sum of proper divisors (its aliquot sum) s(n): 54014605344
- 21388955616 is an abundant number, because the sum of its proper divisors (54014605344) is greater than itself. Its abundance is 32625649728
Bases of 21388955616
- Binary: 100111110101110000110001111111000002
- Hexadecimal: 0x4FAE18FE0
- Base-36: 9TQFJS0
Squares and roots of 21388955616
- 21388955616 squared (213889556162) is 457487422343217939456
- 21388955616 cubed (213889556163) is 9785178171377335225639359184896
-
The
square root of 21388955616 is 146249.6345841585 -
The
cube root of 21388955616 is 2775.8534016105
Scales and comparisons
How big is 21388955616?- 21,388,955,616 seconds is equal to 680 years, 5 weeks, 2 days, 8 hours, 33 minutes, 36 seconds.
-
To count from 1 to 21,388,955,616 would take you about one thousand, three hundred sixty 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 21388955616 cubic inches would be around 231.3 feet tall.
Recreational maths with 21388955616
- 21388955616 backwards is 61655988312
- The number of decimal digits it has is: 11
- The sum of 21388955616's digits is 54
- More coming soon!
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