13139784
13,139,784 is an even composite number composed of five prime numbers multiplied together.
13139784 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 13139784:
23 × 32 × 7 × 292 × 31
(2 × 2 × 2 × 3 × 3 × 7 × 29 × 29 × 31)See below for interesting mathematical facts about the number 13139784 from the Numbermatics database.
Names of 13139784
- Cardinal: 13139784 can be written as Thirteen million, one hundred thirty-nine thousand, seven hundred eighty-four.
Scientific notation
- Scientific notation: 1.3139784 × 107
Factors of 13139784
Divisors of 13139784
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 18 21 24 28 29 31 36 42 56 58 62 63 72 84 87 93 116 124 126 168 174 186 203 217 232 248 252 261 279 348 372 406 434 504 522 558 609 651 696 744 812 841 868 899 1044 1116 1218 1302 1624 1682 1736 1798 1827 1953 2088 2232 2436 2523 2604 2697 3364 3596 3654 3906 4872 5046 5208 5394 5887 6293 6728 7192 7308 7569 7812 8091 10092 10788 11774 12586 14616 15138 15624 16182 17661 18879 20184 21576 23548 25172 26071 30276 32364 35322 37758 47096 50344 52142 52983 56637 60552 64728 70644 75516 78213 104284 105966 113274 141288 151032 156426 182497 208568 211932 226548 234639 312852 364994 423864 453096 469278 547491 625704 729988 938556 1094982 1459976 1642473 1877112 2189964 3284946 4379928 6569892 13139784
- Sum of all divisors σ(n): 43480320
- Sum of proper divisors (its aliquot sum) s(n): 30340536
- 13139784 is an abundant number, because the sum of its proper divisors (30340536) is greater than itself. Its abundance is 17200752
Bases of 13139784
- Binary: 1100100001111111010010002
- Hexadecimal: 0xC87F48
- Base-36: 7TMQ0
Squares and roots of 13139784
- 13139784 squared (131397842) is 172653923566656
- 13139784 cubed (131397843) is 2268635262418369442304
-
The
square root of 13139784 is 3624.8839981439 -
The
cube root of 13139784 is 235.9732326243
Scales and comparisons
How big is 13139784?- 13,139,784 seconds is equal to 21 weeks, 5 days, 1 hour, 56 minutes, 24 seconds.
-
To count from 1 to 13,139,784 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 13139784 cubic inches would be around 19.7 feet tall.
Recreational maths with 13139784
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