21478540440
21,478,540,440 is an even composite number composed of six prime numbers multiplied together.
21478540440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21478540440:
23 × 3 × 5 × 72 × 413 × 53
(2 × 2 × 2 × 3 × 5 × 7 × 7 × 41 × 41 × 41 × 53)See below for interesting mathematical facts about the number 21478540440 from the Numbermatics database.
Names of 21478540440
- Cardinal: 21478540440 can be written as Twenty-one billion, four hundred seventy-eight million, five hundred forty thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.147854044 × 1010
Factors of 21478540440
Divisors of 21478540440
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 41 42 49 53 56 60 70 82 84 98 105 106 120 123 140 147 159 164 168 196 205 210 212 245 246 265 280 287 294 318 328 371 392 410 420 424 490 492 530 574 588 615 636 735 742 795 820 840 861 980 984 1060 1113 1148 1176 1230 1272 1435 1470 1484 1590 1640 1681 1722 1855 1960 2009 2120 2173 2226 2296 2460 2597 2870 2940 2968 3180 3362 3444 3710 4018 4305 4346 4452 4920 5043 5194 5565 5740 5880 6027 6360 6519 6724 6888 7420 7791 8036 8405 8610 8692 8904 10045 10086 10388 10865 11130 11480 11767 12054 12985 13038 13448 14840 15211 15582 16072 16810 17220 17384 20090 20172 20776 21730 22260 23534 24108 25215 25970 26076 30135 30422 31164 32595 33620 34440 35301 38955 40180 40344 43460 44520 45633 47068 48216 50430 51940 52152 58835 60270 60844 62328 65190 67240 68921 70602 76055 77910 80360 82369 86920 89093 91266 94136 100860 103880 106477 117670 120540 121688 130380 137842 141204 152110 155820 164738 176505 178186 182532 201720 206763 212954 228165 235340 241080 247107 260760 267279 275684 282408 304220 311640 319431 329476 344605 353010 356372 365064 411845 413526 425908 445465 456330 470680 482447 494214 532385 534558 551368 608440 623651 638862 658952 689210 706020 712744 823690 827052 851816 890930 912660 964894 988428 1033815 1064770 1069116 1235535 1247302 1277724 1336395 1378420 1412040 1447341 1597155 1647380 1654104 1781860 1825320 1870953 1929788 1976856 2067630 2129540 2138232 2412235 2471070 2494604 2555448 2672790 2756840 2894682 3118255 3194310 3294760 3377129 3563720 3652813 3741906 3859576 4135260 4259080 4365557 4824470 4942140 4989208 5345580 5789364 6236510 6388620 6754258 7236705 7305626 7483812 8270520 8731114 9354765 9648940 9884280 10131387 10691160 10958439 11578728 12473020 12777240 13096671 13508516 14473410 14611252 14967624 16885645 17462228 18264065 18709530 19297880 20262774 21827785 21916878 24946040 25569691 26193342 27017032 28946820 29222504 33771290 34924456 36528130 37419060 40525548 43655570 43833756 50656935 51139382 52386684 54792195 57893640 65483355 67542580 73056260 74838120 76709073 81051096 87311140 87667512 101313870 102278764 104773368 109584390 127848455 130966710 135085160 146112520 153418146 174622280 178987837 202627740 204557528 219168780 255696910 261933420 306836292 357975674 383545365 405255480 438337560 511393820 523866840 536963511 613672584 715951348 767090730 894939185 1022787640 1073927022 1431902696 1534181460 1789878370 2147854044 2684817555 3068362920 3579756740 4295708088 5369635110 7159513480 10739270220 21478540440
- Sum of all divisors σ(n): 78279203520
- Sum of proper divisors (its aliquot sum) s(n): 56800663080
- 21478540440 is an abundant number, because the sum of its proper divisors (56800663080) is greater than itself. Its abundance is 35322122640
Bases of 21478540440
- Binary: 101000000000011100010000100100110002
- Hexadecimal: 0x500388498
- Base-36: 9V7RNVC
Squares and roots of 21478540440
- 21478540440 squared (214785404402) is 461327699432715393600
- 21478540440 cubed (214785404403) is 9908645648357742640448117184000
-
The
square root of 21478540440 is 146555.5882250827 -
The
cube root of 21478540440 is 2779.7234357311
Scales and comparisons
How big is 21478540440?- 21,478,540,440 seconds is equal to 682 years, 49 weeks, 3 days, 5 hours, 14 minutes.
-
To count from 1 to 21,478,540,440 would take you about one thousand, three hundred sixty-five 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 21478540440 cubic inches would be around 231.6 feet tall.
Recreational maths with 21478540440
- 21478540440 backwards is 04404587412
- The number of decimal digits it has is: 11
- The sum of 21478540440's digits is 39
- More coming soon!
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