21621302640
21,621,302,640 is an even composite number composed of six prime numbers multiplied together.
21621302640 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred sixty divisors.
Prime factorization of 21621302640:
24 × 32 × 5 × 7 × 292 × 5101
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 7 × 29 × 29 × 5101)See below for interesting mathematical facts about the number 21621302640 from the Numbermatics database.
Names of 21621302640
- Cardinal: 21621302640 can be written as Twenty-one billion, six hundred twenty-one million, three hundred two thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.162130264 × 1010
Factors of 21621302640
Divisors of 21621302640
- Number of divisors d(n): 360
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 29 30 35 36 40 42 45 48 56 58 60 63 70 72 80 84 87 90 105 112 116 120 126 140 144 145 168 174 180 203 210 232 240 252 261 280 290 315 336 348 360 406 420 435 464 504 522 560 580 609 630 696 720 812 840 841 870 1008 1015 1044 1160 1218 1260 1305 1392 1624 1680 1682 1740 1827 2030 2088 2320 2436 2520 2523 2610 3045 3248 3364 3480 3654 4060 4176 4205 4872 5040 5046 5101 5220 5887 6090 6728 6960 7308 7569 8120 8410 9135 9744 10092 10202 10440 11774 12180 12615 13456 14616 15138 15303 16240 16820 17661 18270 20184 20404 20880 23548 24360 25230 25505 29232 29435 30276 30606 33640 35322 35707 36540 37845 40368 40808 45909 47096 48720 50460 51010 52983 58870 60552 61212 67280 70644 71414 73080 75690 76515 81616 88305 91818 94192 100920 102020 105966 107121 117740 121104 122424 141288 142828 146160 147929 151380 153030 176610 178535 183636 201840 204040 211932 214242 229545 235480 244848 264915 282576 285656 295858 302760 306060 321363 353220 357070 367272 408080 423864 428484 443787 459090 470960 529830 535605 571312 591716 605520 612120 642726 706440 714140 734544 739645 847728 856968 887574 918180 1035503 1059660 1071210 1183432 1224240 1285452 1331361 1412880 1428280 1479290 1606815 1713936 1775148 1836360 2071006 2119320 2142420 2218935 2366864 2570904 2662722 2856560 2958580 3106509 3213630 3550296 3672720 4142012 4238640 4284840 4289941 4437870 5141808 5177515 5325444 5917160 6213018 6427260 6656805 7100592 8284024 8569680 8579882 8875740 9319527 10355030 10650888 11834320 12426036 12854520 12869823 13313610 15532545 16568048 17159764 17751480 18639054 20710060 21301776 21449705 24852072 25709040 25739646 26627220 30029587 31065090 34319528 35502960 37278108 38609469 41420120 42899410 46597635 49704144 51479292 53254440 60059174 62130180 64349115 68639056 74556216 77218938 82840240 85798820 90088761 93195270 102958584 106508880 120118348 124260360 128698230 149112432 150147935 154437876 171597640 180177522 186390540 193047345 205917168 240236696 248520720 257396460 270266283 300295870 308875752 343195280 360355044 372781080 386094690 450443805 480473392 514792920 540532566 600591740 617751504 720710088 745562160 772189380 900887610 1029585840 1081065132 1201183480 1351331415 1441420176 1544378760 1801775220 2162130264 2402366960 2702662830 3088757520 3603550440 4324260528 5405325660 7207100880 10810651320 21621302640
- Sum of all divisors σ(n): 85961679648
- Sum of proper divisors (its aliquot sum) s(n): 64340377008
- 21621302640 is an abundant number, because the sum of its proper divisors (64340377008) is greater than itself. Its abundance is 42719074368
Bases of 21621302640
- Binary: 101000010001011101011100101011100002
- Hexadecimal: 0x508BAE570
- Base-36: 9XKRJW0
Squares and roots of 21621302640
- 21621302640 squared (216213026402) is 467480727850470969600
- 21621302640 cubed (216213026403) is 10107542295222509500255839744000
-
The
square root of 21621302640 is 147041.8397599811 -
The
cube root of 21621302640 is 2785.8685372799
Scales and comparisons
How big is 21621302640?- 21,621,302,640 seconds is equal to 687 years, 25 weeks, 3 days, 13 hours, 24 minutes.
-
To count from 1 to 21,621,302,640 would take you about one thousand, three hundred seventy-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 21621302640 cubic inches would be around 232.2 feet tall.
Recreational maths with 21621302640
- 21621302640 backwards is 04620312612
- The number of decimal digits it has is: 11
- The sum of 21621302640's digits is 27
- More coming soon!
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