12421440
12,421,440 is an even composite number composed of five prime numbers multiplied together.
12421440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 12421440:
26 × 32 × 5 × 19 × 227
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 19 × 227)See below for interesting mathematical facts about the number 12421440 from the Numbermatics database.
Names of 12421440
- Cardinal: 12421440 can be written as Twelve million, four hundred twenty-one thousand, four hundred forty.
Scientific notation
- Scientific notation: 1.242144 × 107
Factors of 12421440
Divisors of 12421440
- Number of divisors d(n): 168
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 30 32 36 38 40 45 48 57 60 64 72 76 80 90 95 96 114 120 144 152 160 171 180 190 192 227 228 240 285 288 304 320 342 360 380 454 456 480 570 576 608 681 684 720 760 855 908 912 960 1135 1140 1216 1362 1368 1440 1520 1710 1816 1824 2043 2270 2280 2724 2736 2880 3040 3405 3420 3632 3648 4086 4313 4540 4560 5448 5472 6080 6810 6840 7264 8172 8626 9080 9120 10215 10896 10944 12939 13620 13680 14528 16344 17252 18160 18240 20430 21565 21792 25878 27240 27360 32688 34504 36320 38817 40860 43130 43584 51756 54480 54720 64695 65376 69008 72640 77634 81720 86260 103512 108960 129390 130752 138016 155268 163440 172520 194085 207024 217920 258780 276032 310536 326880 345040 388170 414048 517560 621072 653760 690080 776340 828096 1035120 1242144 1380160 1552680 2070240 2484288 3105360 4140480 6210720 12421440
- Sum of all divisors σ(n): 45171360
- Sum of proper divisors (its aliquot sum) s(n): 32749920
- 12421440 is an abundant number, because the sum of its proper divisors (32749920) is greater than itself. Its abundance is 20328480
Bases of 12421440
- Binary: 1011110110001001010000002
- Hexadecimal: 0xBD8940
- Base-36: 7E8G0
Squares and roots of 12421440
- 12421440 squared (124214402) is 154292171673600
- 12421440 cubed (124214403) is 1916530952913321984000
-
The
square root of 12421440 is 3524.4063329871 -
The
cube root of 12421440 is 231.5922286133
Scales and comparisons
How big is 12421440?- 12,421,440 seconds is equal to 20 weeks, 3 days, 18 hours, 24 minutes.
-
To count from 1 to 12,421,440 would take you about thirty weeks!
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 12421440 cubic inches would be around 19.3 feet tall.
Recreational maths with 12421440
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