21087421740
21,087,421,740 is an even composite number composed of seven prime numbers multiplied together.
21087421740 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21087421740:
22 × 34 × 5 × 7 × 11 × 71 × 2381
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 7 × 11 × 71 × 2381)See below for interesting mathematical facts about the number 21087421740 from the Numbermatics database.
Names of 21087421740
- Cardinal: 21087421740 can be written as Twenty-one billion, eighty-seven million, four hundred twenty-one thousand, seven hundred forty.
Scientific notation
- Scientific notation: 2.108742174 × 1010
Factors of 21087421740
Divisors of 21087421740
- Number of divisors d(n): 480
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Complete list of divisors:
1 2 3 4 5 6 7 9 10 11 12 14 15 18 20 21 22 27 28 30 33 35 36 42 44 45 54 55 60 63 66 70 71 77 81 84 90 99 105 108 110 126 132 135 140 142 154 162 165 180 189 198 210 213 220 231 252 270 284 297 308 315 324 330 355 378 385 396 405 420 426 462 495 497 540 567 594 630 639 660 693 710 756 770 781 810 852 891 924 945 990 994 1065 1134 1155 1188 1260 1278 1386 1420 1485 1491 1540 1562 1620 1782 1890 1917 1980 1988 2079 2130 2268 2310 2343 2381 2485 2556 2772 2835 2970 2982 3124 3195 3465 3564 3780 3834 3905 4158 4260 4455 4473 4620 4686 4762 4970 5467 5670 5751 5940 5964 6237 6390 6930 7029 7143 7455 7668 7810 8316 8910 8946 9372 9524 9585 9940 10395 10934 11340 11502 11715 11905 12474 12780 13419 13860 14058 14286 14910 15620 16401 16667 17820 17892 19170 20790 21087 21429 21868 22365 23004 23430 23810 24948 26191 26838 27335 28116 28572 28755 29820 31185 32802 33334 35145 35715 38340 40257 41580 42174 42858 44730 46860 47620 49203 50001 52382 53676 54670 57510 62370 63261 64287 65604 66668 67095 70290 71430 78573 80514 82005 83335 84348 85716 89460 98406 100002 104764 105435 107145 109340 115020 124740 126522 128574 130955 134190 140580 142860 147609 150003 157146 161028 164010 166670 169051 183337 192861 196812 200004 201285 210870 214290 235719 246015 250005 253044 257148 261910 268380 295218 300006 314292 316305 321435 328020 333340 338102 366674 385722 392865 402570 421740 428580 442827 450009 471438 492030 500010 507153 523820 550011 590436 600012 632610 642870 676204 707157 733348 738045 750015 771444 785730 805140 845255 885654 900018 916685 942876 964305 984060 1000020 1014306 1100022 1178595 1183357 1265220 1285740 1350027 1414314 1476090 1500030 1521459 1571460 1650033 1690510 1771308 1800036 1833370 1859561 1928610 2028612 2121471 2200044 2214135 2250045 2357190 2366714 2535765 2700054 2750055 2828628 2952180 3000060 3042918 3300066 3381020 3535785 3550071 3666740 3719122 3857220 4242942 4428270 4500090 4564377 4714380 4733428 4950099 5071530 5400108 5500110 5578683 5916785 6085836 6600132 6750135 7071570 7100142 7438244 7607295 8250165 8485884 8856540 9000180 9128754 9297805 9900198 10143060 10607355 10650213 11000220 11157366 11833570 13016927 13500270 13693131 14143140 14200284 14850297 15214590 16500330 16736049 17750355 18257508 18595610 19800396 21214710 21300426 22314732 22821885 23667140 24750495 26033854 27000540 27386262 27893415 29700594 30429180 31950639 33000660 33472098 35500710 37191220 39050781 42429420 42600852 45643770 49500990 50208147 52067708 53251065 54772524 55786830 59401188 63901278 65084635 66944196 68465655 71001420 74251485 78101562 83680245 91287540 95851917 99001980 100416294 106502130 111573660 117152343 127802556 130169270 136931310 148502970 150624441 156203124 159753195 167360490 191703834 195253905 200832588 213004260 234304686 251040735 260338540 273862620 297005940 301248882 319506390 334720980 351457029 383407668 390507810 468609372 479259585 502081470 585761715 602497764 639012780 702914058 753122205 781015620 958519170 1004162940 1054371087 1171523430 1405828116 1506244410 1757285145 1917038340 2108742174 2343046860 3012488820 3514570290 4217484348 5271855435 7029140580 10543710870 21087421740
- Sum of all divisors σ(n): 83671999488
- Sum of proper divisors (its aliquot sum) s(n): 62584577748
- 21087421740 is an abundant number, because the sum of its proper divisors (62584577748) is greater than itself. Its abundance is 41497156008
Bases of 21087421740
- Binary: 100111010001110100010000101001011002
- Hexadecimal: 0x4E8E8852C
- Base-36: 9OQWMR0
Squares and roots of 21087421740
- 21087421740 squared (210874217402) is 444679355640624627600
- 21087421740 cubed (210874217403) is 9377141111465299399231644024000
-
The
square root of 21087421740 is 145215.0878524681 -
The
cube root of 21087421740 is 2762.7472880873
Scales and comparisons
How big is 21087421740?- 21,087,421,740 seconds is equal to 670 years, 26 weeks, 5 days, 9 hours, 9 minutes.
-
To count from 1 to 21,087,421,740 would take you about one thousand, three hundred forty-one 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 21087421740 cubic inches would be around 230.2 feet tall.
Recreational maths with 21087421740
- 21087421740 backwards is 04712478012
- 21087421740 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21087421740's digits is 36
- More coming soon!
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