12821490
12,821,490 is an even composite number composed of five prime numbers multiplied together.
12821490 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 12821490:
2 × 34 × 5 × 11 × 1439
(2 × 3 × 3 × 3 × 3 × 5 × 11 × 1439)See below for interesting mathematical facts about the number 12821490 from the Numbermatics database.
Names of 12821490
- Cardinal: 12821490 can be written as Twelve million, eight hundred twenty-one thousand, four hundred ninety.
Scientific notation
- Scientific notation: 1.282149 × 107
Factors of 12821490
Divisors of 12821490
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 81 90 99 110 135 162 165 198 270 297 330 405 495 594 810 891 990 1439 1485 1782 2878 2970 4317 4455 7195 8634 8910 12951 14390 15829 21585 25902 31658 38853 43170 47487 64755 77706 79145 94974 116559 129510 142461 158290 194265 233118 237435 284922 388530 427383 474870 582795 712305 854766 1165590 1282149 1424610 2136915 2564298 4273830 6410745 12821490
- Sum of all divisors σ(n): 37635840
- Sum of proper divisors (its aliquot sum) s(n): 24814350
- 12821490 is an abundant number, because the sum of its proper divisors (24814350) is greater than itself. Its abundance is 11992860
Bases of 12821490
- Binary: 1100001110100011111100102
- Hexadecimal: 0xC3A3F2
- Base-36: 7MT4I
Squares and roots of 12821490
- 12821490 squared (128214902) is 164390605820100
- 12821490 cubed (128214903) is 2107732508616353949000
-
The
square root of 12821490 is 3580.7108232863 -
The
cube root of 12821490 is 234.0522565739
Scales and comparisons
How big is 12821490?- 12,821,490 seconds is equal to 21 weeks, 1 day, 9 hours, 31 minutes, 30 seconds.
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To count from 1 to 12,821,490 would take you about thirty-one 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 12821490 cubic inches would be around 19.5 feet tall.
Recreational maths with 12821490
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