12986490
12,986,490 is an even composite number composed of seven prime numbers multiplied together.
12986490 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 12986490:
2 × 3 × 5 × 11 × 23 × 29 × 59
See below for interesting mathematical facts about the number 12986490 from the Numbermatics database.
Names of 12986490
- Cardinal: 12986490 can be written as Twelve million, nine hundred eighty-six thousand, four hundred ninety.
Scientific notation
- Scientific notation: 1.298649 × 107
Factors of 12986490
Divisors of 12986490
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 10 11 15 22 23 29 30 33 46 55 58 59 66 69 87 110 115 118 138 145 165 174 177 230 253 290 295 319 330 345 354 435 506 590 638 649 667 690 759 870 885 957 1265 1298 1334 1357 1518 1595 1711 1770 1914 1947 2001 2530 2714 3190 3245 3335 3422 3795 3894 4002 4071 4785 5133 6490 6670 6785 7337 7590 8142 8555 9570 9735 10005 10266 13570 14674 14927 17110 18821 19470 20010 20355 22011 25665 29854 36685 37642 39353 40710 44022 44781 51330 56463 73370 74635 78706 89562 94105 110055 112926 118059 149270 188210 196765 220110 223905 236118 282315 393530 432883 447810 564630 590295 865766 1180590 1298649 2164415 2597298 4328830 6493245 12986490
- Sum of all divisors σ(n): 37324800
- Sum of proper divisors (its aliquot sum) s(n): 24338310
- 12986490 is an abundant number, because the sum of its proper divisors (24338310) is greater than itself. Its abundance is 11351820
Bases of 12986490
- Binary: 1100011000101000011110102
- Hexadecimal: 0xC6287A
- Base-36: 7QCFU
Squares and roots of 12986490
- 12986490 squared (129864902) is 168648922520100
- 12986490 cubed (129864903) is 2190157545818053449000
-
The
square root of 12986490 is 3603.6772885485 -
The
cube root of 12986490 is 235.0519878945
Scales and comparisons
How big is 12986490?- 12,986,490 seconds is equal to 21 weeks, 3 days, 7 hours, 21 minutes, 30 seconds.
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To count from 1 to 12,986,490 would take you about thirty-two 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 12986490 cubic inches would be around 19.6 feet tall.
Recreational maths with 12986490
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