13138664
13,138,664 is an even composite number composed of four prime numbers multiplied together.
13138664 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 13138664:
23 × 72 × 112 × 277
(2 × 2 × 2 × 7 × 7 × 11 × 11 × 277)See below for interesting mathematical facts about the number 13138664 from the Numbermatics database.
Names of 13138664
- Cardinal: 13138664 can be written as Thirteen million, one hundred thirty-eight thousand, six hundred sixty-four.
Scientific notation
- Scientific notation: 1.3138664 × 107
Factors of 13138664
Divisors of 13138664
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 7 8 11 14 22 28 44 49 56 77 88 98 121 154 196 242 277 308 392 484 539 554 616 847 968 1078 1108 1694 1939 2156 2216 3047 3388 3878 4312 5929 6094 6776 7756 11858 12188 13573 15512 21329 23716 24376 27146 33517 42658 47432 54292 67034 85316 108584 134068 149303 170632 234619 268136 298606 469238 597212 938476 1194424 1642333 1876952 3284666 6569332 13138664
- Sum of all divisors σ(n): 31612770
- Sum of proper divisors (its aliquot sum) s(n): 18474106
- 13138664 is an abundant number, because the sum of its proper divisors (18474106) is greater than itself. Its abundance is 5335442
Bases of 13138664
- Binary: 1100100001111010111010002
- Hexadecimal: 0xC87AE8
- Base-36: 7TLUW
Squares and roots of 13138664
- 13138664 squared (131386642) is 172624491704896
- 13138664 cubed (131386643) is 2268055194681415698944
-
The
square root of 13138664 is 3624.7295071495 -
The
cube root of 13138664 is 235.9665278585
Scales and comparisons
How big is 13138664?- 13,138,664 seconds is equal to 21 weeks, 5 days, 1 hour, 37 minutes, 44 seconds.
-
To count from 1 to 13,138,664 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 13138664 cubic inches would be around 19.7 feet tall.
Recreational maths with 13138664
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