21497488740
21,497,488,740 is an even composite number composed of six prime numbers multiplied together.
21497488740 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty-four divisors.
Prime factorization of 21497488740:
22 × 32 × 5 × 72 × 13 × 4332
(2 × 2 × 3 × 3 × 5 × 7 × 7 × 13 × 433 × 433)See below for interesting mathematical facts about the number 21497488740 from the Numbermatics database.
Names of 21497488740
- Cardinal: 21497488740 can be written as Twenty-one billion, four hundred ninety-seven million, four hundred eighty-eight thousand, seven hundred forty.
Scientific notation
- Scientific notation: 2.149748874 × 1010
Factors of 21497488740
Divisors of 21497488740
- Number of divisors d(n): 324
-
Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 13 14 15 18 20 21 26 28 30 35 36 39 42 45 49 52 60 63 65 70 78 84 90 91 98 105 117 126 130 140 147 156 180 182 195 196 210 234 245 252 260 273 294 315 364 390 420 433 441 455 468 490 546 585 588 630 637 735 780 819 866 882 910 980 1092 1170 1260 1274 1299 1365 1470 1638 1732 1764 1820 1911 2165 2205 2340 2548 2598 2730 2940 3031 3185 3276 3822 3897 4095 4330 4410 5196 5460 5629 5733 6062 6370 6495 7644 7794 8190 8660 8820 9093 9555 11258 11466 12124 12740 12990 15155 15588 16380 16887 18186 19110 19485 21217 22516 22932 25980 27279 28145 28665 30310 33774 36372 38220 38970 39403 42434 45465 50661 54558 56290 57330 60620 63651 67548 77940 78806 84435 84868 90930 101322 106085 109116 112580 114660 118209 127302 136395 157612 168870 181860 187489 190953 197015 202644 212170 236418 253305 254604 272790 275821 318255 337740 354627 374978 381906 394030 424340 472836 506610 545580 551642 562467 591045 636510 709254 749956 763812 788060 827463 937445 954765 1013220 1103284 1124934 1182090 1273020 1312423 1379105 1418508 1654926 1687401 1773135 1874890 1909530 2249868 2364180 2437357 2482389 2624846 2758210 2812335 3309852 3374802 3546270 3749780 3819060 3937269 4137315 4874714 4964778 5249692 5516420 5624670 6562115 6749604 7092540 7312071 7874538 8274630 8437005 9186961 9749428 9929556 11249340 11811807 12186785 12411945 13124230 14624142 15749076 16549260 16874010 17061499 18373922 19686345 21936213 23623614 24373570 24823890 26248460 27560883 29248284 33748020 34122998 36560355 36747844 39372690 43872426 45934805 47247228 48747140 49647780 51184497 55121766 59059035 68245996 73120710 78745380 82682649 85307495 87744852 91869610 102368994 109681065 110243532 118118070 119430493 137804415 146241420 153553491 165365298 170614990 183739220 204737988 219362130 236236140 238860986 255922485 275608830 307106982 330730596 341229980 358291479 413413245 438724260 477721972 511844970 551217660 597152465 614213964 716582958 767767455 826826490 1023689940 1074874437 1194304930 1433165916 1535534910 1653652980 1791457395 2149748874 2388609860 3071069820 3582914790 4299497748 5374372185 7165829580 10748744370 21497488740
- Sum of all divisors σ(n): 81879554484
- Sum of proper divisors (its aliquot sum) s(n): 60382065744
- 21497488740 is an abundant number, because the sum of its proper divisors (60382065744) is greater than itself. Its abundance is 38884577004
Bases of 21497488740
- Binary: 101000000010101100110100101011001002
- Hexadecimal: 0x50159A564
- Base-36: 9VJ1SH0
Squares and roots of 21497488740
- 21497488740 squared (214974887402) is 462142022126426787600
- 21497488740 cubed (214974887403) is 9934892916943690722865371624000
-
The
square root of 21497488740 is 146620.2194105575 -
The
cube root of 21497488740 is 2780.5406165287
Scales and comparisons
How big is 21497488740?- 21,497,488,740 seconds is equal to 683 years, 28 weeks, 5 days, 12 hours, 39 minutes.
-
To count from 1 to 21,497,488,740 would take you about one thousand, three hundred sixty-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 21497488740 cubic inches would be around 231.7 feet tall.
Recreational maths with 21497488740
- 21497488740 backwards is 04788479412
- The number of decimal digits it has is: 11
- The sum of 21497488740's digits is 54
- More coming soon!
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