28649320
28,649,320 is an even composite number composed of five prime numbers multiplied together.
28649320 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 28649320:
23 × 5 × 72 × 47 × 311
(2 × 2 × 2 × 5 × 7 × 7 × 47 × 311)See below for interesting mathematical facts about the number 28649320 from the Numbermatics database.
Names of 28649320
- Cardinal: 28649320 can be written as Twenty-eight million, six hundred forty-nine thousand, three hundred twenty.
Scientific notation
- Scientific notation: 2.864932 × 107
Factors of 28649320
Divisors of 28649320
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 7 8 10 14 20 28 35 40 47 49 56 70 94 98 140 188 196 235 245 280 311 329 376 392 470 490 622 658 940 980 1244 1316 1555 1645 1880 1960 2177 2303 2488 2632 3110 3290 4354 4606 6220 6580 8708 9212 10885 11515 12440 13160 14617 15239 17416 18424 21770 23030 29234 30478 43540 46060 58468 60956 73085 76195 87080 92120 102319 116936 121912 146170 152390 204638 292340 304780 409276 511595 584680 609560 716233 818552 1023190 1432466 2046380 2864932 3581165 4092760 5729864 7162330 14324660 28649320
- Sum of all divisors σ(n): 76826880
- Sum of proper divisors (its aliquot sum) s(n): 48177560
- 28649320 is an abundant number, because the sum of its proper divisors (48177560) is greater than itself. Its abundance is 19528240
Bases of 28649320
- Binary: 11011010100100111011010002
- Hexadecimal: 0x1B52768
- Base-36: H21YG
Squares and roots of 28649320
- 28649320 squared (286493202) is 820783536462400
- 28649320 cubed (286493203) is 23514890186842965568000
-
The
square root of 28649320 is 5352.5059551577 -
The
cube root of 28649320 is 305.9882661711
Scales and comparisons
How big is 28649320?- 28,649,320 seconds is equal to 47 weeks, 2 days, 14 hours, 8 minutes, 40 seconds.
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To count from 1 to 28,649,320 would take you about nineteen 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 28649320 cubic inches would be around 25.5 feet tall.
Recreational maths with 28649320
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