20966400
20,966,400 is an even composite number composed of five prime numbers multiplied together.
20966400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred ninety-six divisors.
Prime factorization of 20966400:
210 × 32 × 52 × 7 × 13
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 7 × 13)See below for interesting mathematical facts about the number 20966400 from the Numbermatics database.
Names of 20966400
- Cardinal: 20966400 can be written as Twenty million, nine hundred sixty-six thousand, four hundred.
Scientific notation
- Scientific notation: 2.09664 × 107
Factors of 20966400
Divisors of 20966400
- Number of divisors d(n): 396
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 25 26 28 30 32 35 36 39 40 42 45 48 50 52 56 60 63 64 65 70 72 75 78 80 84 90 91 96 100 104 105 112 117 120 126 128 130 140 144 150 156 160 168 175 180 182 192 195 200 208 210 224 225 234 240 252 256 260 273 280 288 300 312 315 320 325 336 350 360 364 384 390 400 416 420 448 450 455 468 480 504 512 520 525 546 560 576 585 600 624 630 640 650 672 700 720 728 768 780 800 819 832 840 896 900 910 936 960 975 1008 1024 1040 1050 1092 1120 1152 1170 1200 1248 1260 1280 1300 1344 1365 1400 1440 1456 1536 1560 1575 1600 1638 1664 1680 1792 1800 1820 1872 1920 1950 2016 2080 2100 2184 2240 2275 2304 2340 2400 2496 2520 2560 2600 2688 2730 2800 2880 2912 2925 3072 3120 3150 3200 3276 3328 3360 3584 3600 3640 3744 3840 3900 4032 4095 4160 4200 4368 4480 4550 4608 4680 4800 4992 5040 5120 5200 5376 5460 5600 5760 5824 5850 6240 6300 6400 6552 6656 6720 6825 7168 7200 7280 7488 7680 7800 8064 8190 8320 8400 8736 8960 9100 9216 9360 9600 9984 10080 10400 10752 10920 11200 11520 11648 11700 12480 12600 12800 13104 13312 13440 13650 14400 14560 14976 15360 15600 16128 16380 16640 16800 17472 17920 18200 18720 19200 19968 20160 20475 20800 21504 21840 22400 23040 23296 23400 24960 25200 25600 26208 26880 27300 28800 29120 29952 31200 32256 32760 33280 33600 34944 35840 36400 37440 38400 39936 40320 40950 41600 43680 44800 46080 46592 46800 49920 50400 52416 53760 54600 57600 58240 59904 62400 64512 65520 66560 67200 69888 72800 74880 76800 80640 81900 83200 87360 89600 93184 93600 99840 100800 104832 107520 109200 115200 116480 119808 124800 131040 134400 139776 145600 149760 161280 163800 166400 174720 179200 187200 199680 201600 209664 218400 230400 232960 249600 262080 268800 279552 291200 299520 322560 327600 332800 349440 374400 403200 419328 436800 465920 499200 524160 537600 582400 599040 655200 698880 748800 806400 838656 873600 998400 1048320 1164800 1310400 1397760 1497600 1612800 1747200 2096640 2329600 2620800 2995200 3494400 4193280 5241600 6988800 10483200 20966400
- Sum of all divisors σ(n): 92393392
- Sum of proper divisors (its aliquot sum) s(n): 71426992
- 20966400 is an abundant number, because the sum of its proper divisors (71426992) is greater than itself. Its abundance is 50460592
Bases of 20966400
- Binary: 10011111111101100000000002
- Hexadecimal: 0x13FEC00
- Base-36: CHDS0
Squares and roots of 20966400
- 20966400 squared (209664002) is 439589928960000
- 20966400 cubed (209664003) is 9216618286546944000000
-
The
square root of 20966400 is 4578.9081668015 -
The
cube root of 20966400 is 275.7451964695
Scales and comparisons
How big is 20966400?- 20,966,400 seconds is equal to 34 weeks, 4 days, 16 hours.
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To count from 1 to 20,966,400 would take you about !
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 20966400 cubic inches would be around 23 feet tall.
Recreational maths with 20966400
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