12489840
12,489,840 is an even composite number composed of six prime numbers multiplied together.
12489840 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 12489840:
24 × 32 × 5 × 11 × 19 × 83
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 11 × 19 × 83)See below for interesting mathematical facts about the number 12489840 from the Numbermatics database.
Names of 12489840
- Cardinal: 12489840 can be written as Twelve million, four hundred eighty-nine thousand, eight hundred forty.
Scientific notation
- Scientific notation: 1.248984 × 107
Factors of 12489840
Divisors of 12489840
- Number of divisors d(n): 240
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 11 12 15 16 18 19 20 22 24 30 33 36 38 40 44 45 48 55 57 60 66 72 76 80 83 88 90 95 99 110 114 120 132 144 152 165 166 171 176 180 190 198 209 220 228 240 249 264 285 304 330 332 342 360 380 396 415 418 440 456 495 498 528 570 627 660 664 684 720 747 760 792 830 836 855 880 912 913 990 996 1045 1140 1245 1254 1320 1328 1368 1494 1520 1577 1584 1660 1672 1710 1826 1881 1980 1992 2090 2280 2490 2508 2640 2736 2739 2988 3135 3154 3320 3344 3420 3652 3735 3762 3960 3984 4180 4560 4565 4731 4980 5016 5478 5976 6270 6308 6640 6840 7304 7470 7524 7885 7920 8217 8360 9130 9405 9462 9960 10032 10956 11952 12540 12616 13680 13695 14193 14608 14940 15048 15770 16434 16720 17347 18260 18810 18924 19920 21912 23655 25080 25232 27390 28386 29880 30096 31540 32868 34694 36520 37620 37848 41085 43824 47310 50160 52041 54780 56772 59760 63080 65736 69388 70965 73040 75240 75696 82170 86735 94620 104082 109560 113544 126160 131472 138776 141930 150480 156123 164340 173470 189240 208164 219120 227088 260205 277552 283860 312246 328680 346940 378480 416328 520410 567720 624492 657360 693880 780615 832656 1040820 1135440 1248984 1387760 1561230 2081640 2497968 3122460 4163280 6244920 12489840
- Sum of all divisors σ(n): 48746880
- Sum of proper divisors (its aliquot sum) s(n): 36257040
- 12489840 is an abundant number, because the sum of its proper divisors (36257040) is greater than itself. Its abundance is 23767200
Bases of 12489840
- Binary: 1011111010010100011100002
- Hexadecimal: 0xBE9470
- Base-36: 7FP80
Squares and roots of 12489840
- 12489840 squared (124898402) is 155996103225600
- 12489840 cubed (124898403) is 1948366369911227904000
-
The
square root of 12489840 is 3534.0967728685 -
The
cube root of 12489840 is 232.0165465805
Scales and comparisons
How big is 12489840?- 12,489,840 seconds is equal to 20 weeks, 4 days, 13 hours, 24 minutes.
-
To count from 1 to 12,489,840 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 12489840 cubic inches would be around 19.3 feet tall.
Recreational maths with 12489840
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