28266420
28,266,420 is an even composite number composed of seven prime numbers multiplied together.
28266420 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 28266420:
22 × 3 × 5 × 7 × 13 × 31 × 167
(2 × 2 × 3 × 5 × 7 × 13 × 31 × 167)See below for interesting mathematical facts about the number 28266420 from the Numbermatics database.
Names of 28266420
- Cardinal: 28266420 can be written as Twenty-eight million, two hundred sixty-six thousand, four hundred twenty.
Scientific notation
- Scientific notation: 2.826642 × 107
Factors of 28266420
Divisors of 28266420
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 31 35 39 42 52 60 62 65 70 78 84 91 93 105 124 130 140 155 156 167 182 186 195 210 217 260 273 310 334 364 372 390 403 420 434 455 465 501 546 620 651 668 780 806 835 868 910 930 1002 1085 1092 1169 1209 1302 1365 1612 1670 1820 1860 2004 2015 2170 2171 2338 2418 2505 2604 2730 2821 3255 3340 3507 4030 4340 4342 4676 4836 5010 5177 5460 5642 5845 6045 6510 6513 7014 8060 8463 8684 10020 10354 10855 11284 11690 12090 13020 13026 14028 14105 15197 15531 16926 17535 20708 21710 23380 24180 25885 26052 28210 30394 31062 32565 33852 35070 36239 42315 43420 45591 51770 56420 60788 62124 65130 67301 70140 72478 75985 77655 84630 91182 103540 108717 130260 134602 144956 151970 155310 169260 181195 182364 201903 217434 227955 269204 303940 310620 336505 362390 403806 434868 455910 471107 543585 673010 724780 807612 911820 942214 1009515 1087170 1346020 1413321 1884428 2019030 2174340 2355535 2826642 4038060 4711070 5653284 7066605 9422140 14133210 28266420
- Sum of all divisors σ(n): 101154816
- Sum of proper divisors (its aliquot sum) s(n): 72888396
- 28266420 is an abundant number, because the sum of its proper divisors (72888396) is greater than itself. Its abundance is 44621976
Bases of 28266420
- Binary: 11010111101001111101101002
- Hexadecimal: 0x1AF4FB4
- Base-36: GTUIC
Squares and roots of 28266420
- 28266420 squared (282664202) is 798990499616400
- 28266420 cubed (282664203) is 22584601038167001288000
-
The
square root of 28266420 is 5316.6173456437 -
The
cube root of 28266420 is 304.6189633879
Scales and comparisons
How big is 28266420?- 28,266,420 seconds is equal to 46 weeks, 5 days, 3 hours, 47 minutes.
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To count from 1 to 28,266,420 would take you about eighteen 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 28266420 cubic inches would be around 25.4 feet tall.
Recreational maths with 28266420
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