13138944
13,138,944 is an even composite number composed of five prime numbers multiplied together.
13138944 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred seventy-six divisors.
Prime factorization of 13138944:
210 × 3 × 7 × 13 × 47
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 13 × 47)See below for interesting mathematical facts about the number 13138944 from the Numbermatics database.
Names of 13138944
- Cardinal: 13138944 can be written as Thirteen million, one hundred thirty-eight thousand, nine hundred forty-four.
Scientific notation
- Scientific notation: 1.3138944 × 107
Factors of 13138944
Divisors of 13138944
- Number of divisors d(n): 176
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Complete list of divisors:
1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 42 47 48 52 56 64 78 84 91 94 96 104 112 128 141 156 168 182 188 192 208 224 256 273 282 312 329 336 364 376 384 416 448 512 546 564 611 624 658 672 728 752 768 832 896 987 1024 1092 1128 1222 1248 1316 1344 1456 1504 1536 1664 1792 1833 1974 2184 2256 2444 2496 2632 2688 2912 3008 3072 3328 3584 3666 3948 4277 4368 4512 4888 4992 5264 5376 5824 6016 6656 7168 7332 7896 8554 8736 9024 9776 9984 10528 10752 11648 12032 12831 13312 14664 15792 17108 17472 18048 19552 19968 21056 21504 23296 24064 25662 29328 31584 34216 34944 36096 39104 39936 42112 46592 48128 51324 58656 63168 68432 69888 72192 78208 84224 93184 102648 117312 126336 136864 139776 144384 156416 168448 205296 234624 252672 273728 279552 312832 336896 410592 469248 505344 547456 625664 821184 938496 1010688 1094912 1642368 1876992 2189824 3284736 4379648 6569472 13138944
- Sum of all divisors σ(n): 44018688
- Sum of proper divisors (its aliquot sum) s(n): 30879744
- 13138944 is an abundant number, because the sum of its proper divisors (30879744) is greater than itself. Its abundance is 17740800
Bases of 13138944
- Binary: 1100100001111100000000002
- Hexadecimal: 0xC87C00
- Base-36: 7TM2O
Squares and roots of 13138944
- 13138944 squared (131389442) is 172631849435136
- 13138944 cubed (131389443) is 2268200202344683536384
-
The
square root of 13138944 is 3624.7681305153 -
The
cube root of 13138944 is 235.9682040857
Scales and comparisons
How big is 13138944?- 13,138,944 seconds is equal to 21 weeks, 5 days, 1 hour, 42 minutes, 24 seconds.
-
To count from 1 to 13,138,944 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 13138944 cubic inches would be around 19.7 feet tall.
Recreational maths with 13138944
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