12991680
12,991,680 is an even composite number composed of five prime numbers multiplied together.
12991680 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 12991680:
26 × 32 × 5 × 13 × 347
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 347)See below for interesting mathematical facts about the number 12991680 from the Numbermatics database.
Names of 12991680
- Cardinal: 12991680 can be written as Twelve million, nine hundred ninety-one thousand, six hundred eighty.
Scientific notation
- Scientific notation: 1.299168 × 107
Factors of 12991680
Divisors of 12991680
- Number of divisors d(n): 168
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 64 65 72 78 80 90 96 104 117 120 130 144 156 160 180 192 195 208 234 240 260 288 312 320 347 360 390 416 468 480 520 576 585 624 694 720 780 832 936 960 1040 1041 1170 1248 1388 1440 1560 1735 1872 2080 2082 2340 2496 2776 2880 3120 3123 3470 3744 4160 4164 4511 4680 5205 5552 6240 6246 6940 7488 8328 9022 9360 10410 11104 12480 12492 13533 13880 15615 16656 18044 18720 20820 22208 22555 24984 27066 27760 31230 33312 36088 37440 40599 41640 45110 49968 54132 55520 62460 66624 67665 72176 81198 83280 90220 99936 108264 111040 124920 135330 144352 162396 166560 180440 199872 202995 216528 249840 270660 288704 324792 333120 360880 405990 433056 499680 541320 649584 721760 811980 866112 999360 1082640 1299168 1443520 1623960 2165280 2598336 3247920 4330560 6495840 12991680
- Sum of all divisors σ(n): 48262032
- Sum of proper divisors (its aliquot sum) s(n): 35270352
- 12991680 is an abundant number, because the sum of its proper divisors (35270352) is greater than itself. Its abundance is 22278672
Bases of 12991680
- Binary: 1100011000111100110000002
- Hexadecimal: 0xC63CC0
- Base-36: 7QGG0
Squares and roots of 12991680
- 12991680 squared (129916802) is 168783749222400
- 12991680 cubed (129916803) is 2192784459097669632000
-
The
square root of 12991680 is 3604.3973143925 -
The
cube root of 12991680 is 235.0832962605
Scales and comparisons
How big is 12991680?- 12,991,680 seconds is equal to 21 weeks, 3 days, 8 hours, 48 minutes.
-
To count from 1 to 12,991,680 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 12991680 cubic inches would be around 19.6 feet tall.
Recreational maths with 12991680
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