15138900
15,138,900 is an even composite number composed of five prime numbers multiplied together.
15138900 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 15138900:
22 × 35 × 52 × 7 × 89
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 7 × 89)See below for interesting mathematical facts about the number 15138900 from the Numbermatics database.
Names of 15138900
- Cardinal: 15138900 can be written as Fifteen million, one hundred thirty-eight thousand, nine hundred.
Scientific notation
- Scientific notation: 1.51389 × 107
Factors of 15138900
Divisors of 15138900
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 25 27 28 30 35 36 42 45 50 54 60 63 70 75 81 84 89 90 100 105 108 126 135 140 150 162 175 178 180 189 210 225 243 252 267 270 300 315 324 350 356 378 405 420 445 450 486 525 534 540 567 623 630 675 700 756 801 810 890 900 945 972 1050 1068 1134 1215 1246 1260 1335 1350 1575 1602 1620 1701 1780 1869 1890 2025 2100 2225 2268 2403 2430 2492 2670 2700 2835 3115 3150 3204 3402 3738 3780 4005 4050 4450 4725 4806 4860 5340 5607 5670 6075 6230 6300 6675 6804 7209 7476 8010 8100 8505 8900 9345 9450 9612 11214 11340 12015 12150 12460 13350 14175 14418 15575 16020 16821 17010 18690 18900 20025 21627 22428 24030 24300 26700 28035 28350 28836 31150 33642 34020 36045 37380 40050 42525 43254 46725 48060 50463 56070 56700 60075 62300 67284 72090 80100 84105 85050 86508 93450 100926 108135 112140 120150 140175 144180 151389 168210 170100 180225 186900 201852 216270 240300 252315 280350 302778 336420 360450 420525 432540 504630 540675 560700 605556 720900 756945 841050 1009260 1081350 1261575 1513890 1682100 2162700 2523150 3027780 3784725 5046300 7569450 15138900
- Sum of all divisors σ(n): 56871360
- Sum of proper divisors (its aliquot sum) s(n): 41732460
- 15138900 is an abundant number, because the sum of its proper divisors (41732460) is greater than itself. Its abundance is 26593560
Bases of 15138900
- Binary: 1110011100000000010101002
- Hexadecimal: 0xE70054
- Base-36: 90H90
Squares and roots of 15138900
- 15138900 squared (151389002) is 229186293210000
- 15138900 cubed (151389003) is 3469628374276869000000
-
The
square root of 15138900 is 3890.8739378191 -
The
cube root of 15138900 is 247.3801072207
Scales and comparisons
How big is 15138900?- 15,138,900 seconds is equal to 25 weeks, 5 hours, 15 minutes.
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To count from 1 to 15,138,900 would take you about thirty-seven 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 15138900 cubic inches would be around 20.6 feet tall.
Recreational maths with 15138900
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