20993280
20,993,280 is an even composite number composed of six prime numbers multiplied together.
20993280 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 20993280:
28 × 3 × 5 × 7 × 11 × 71
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 7 × 11 × 71)See below for interesting mathematical facts about the number 20993280 from the Numbermatics database.
Names of 20993280
- Cardinal: 20993280 can be written as Twenty million, nine hundred ninety-three thousand, two hundred eighty.
Scientific notation
- Scientific notation: 2.099328 × 107
Factors of 20993280
Divisors of 20993280
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 32 33 35 40 42 44 48 55 56 60 64 66 70 71 77 80 84 88 96 105 110 112 120 128 132 140 142 154 160 165 168 176 192 210 213 220 224 231 240 256 264 280 284 308 320 330 336 352 355 384 385 420 426 440 448 462 480 497 528 560 568 616 640 660 672 704 710 768 770 781 840 852 880 896 924 960 994 1056 1065 1120 1136 1155 1232 1280 1320 1344 1408 1420 1491 1540 1562 1680 1704 1760 1792 1848 1920 1988 2112 2130 2240 2272 2310 2343 2464 2485 2640 2688 2816 2840 2982 3080 3124 3360 3408 3520 3696 3840 3905 3976 4224 4260 4480 4544 4620 4686 4928 4970 5280 5376 5467 5680 5964 6160 6248 6720 6816 7040 7392 7455 7810 7952 8448 8520 8960 9088 9240 9372 9856 9940 10560 10934 11360 11715 11928 12320 12496 13440 13632 14080 14784 14910 15620 15904 16401 17040 18176 18480 18744 19712 19880 21120 21868 22720 23430 23856 24640 24992 26880 27264 27335 29568 29820 31240 31808 32802 34080 36960 37488 39760 42240 43736 45440 46860 47712 49280 49984 54528 54670 59136 59640 62480 63616 65604 68160 73920 74976 79520 82005 87472 90880 93720 95424 98560 99968 109340 119280 124960 127232 131208 136320 147840 149952 159040 164010 174944 187440 190848 199936 218680 238560 249920 262416 272640 295680 299904 318080 328020 349888 374880 381696 437360 477120 499840 524832 599808 636160 656040 699776 749760 874720 954240 999680 1049664 1312080 1399552 1499520 1749440 1908480 2099328 2624160 2999040 3498880 4198656 5248320 6997760 10496640 20993280
- Sum of all divisors σ(n): 84768768
- Sum of proper divisors (its aliquot sum) s(n): 63775488
- 20993280 is an abundant number, because the sum of its proper divisors (63775488) is greater than itself. Its abundance is 42782208
Bases of 20993280
- Binary: 10100000001010101000000002
- Hexadecimal: 0x1405500
- Base-36: CHYIO
Squares and roots of 20993280
- 20993280 squared (209932802) is 440717805158400
- 20993280 cubed (209932803) is 9252112284675735552000
-
The
square root of 20993280 is 4581.8424241783 -
The
cube root of 20993280 is 275.8629859739
Scales and comparisons
How big is 20993280?- 20,993,280 seconds is equal to 34 weeks, 4 days, 23 hours, 28 minutes.
-
To count from 1 to 20,993,280 would take you about eleven hours!
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 20993280 cubic inches would be around 23 feet tall.
Recreational maths with 20993280
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