21271250
21,271,250 is an even composite number composed of six prime numbers multiplied together.
21271250 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 21271250:
2 × 54 × 7 × 11 × 13 × 17
(2 × 5 × 5 × 5 × 5 × 7 × 11 × 13 × 17)See below for interesting mathematical facts about the number 21271250 from the Numbermatics database.
Names of 21271250
- Cardinal: 21271250 can be written as Twenty-one million, two hundred seventy-one thousand, two hundred fifty.
Scientific notation
- Scientific notation: 2.127125 × 107
Factors of 21271250
Divisors of 21271250
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 5 7 10 11 13 14 17 22 25 26 34 35 50 55 65 70 77 85 91 110 119 125 130 143 154 170 175 182 187 221 238 250 275 286 325 350 374 385 425 442 455 550 595 625 650 715 770 850 875 910 935 1001 1105 1190 1250 1309 1375 1430 1547 1625 1750 1870 1925 2002 2125 2210 2275 2431 2618 2750 2975 3094 3250 3575 3850 4250 4375 4550 4675 4862 5005 5525 5950 6545 6875 7150 7735 8125 8750 9350 9625 10010 10625 11050 11375 12155 13090 13750 14875 15470 16250 17017 17875 19250 21250 22750 23375 24310 25025 27625 29750 32725 34034 35750 38675 46750 48125 50050 55250 56875 60775 65450 74375 77350 85085 89375 96250 113750 116875 121550 125125 138125 148750 163625 170170 178750 193375 233750 250250 276250 303875 327250 386750 425425 607750 625625 818125 850850 966875 1251250 1519375 1636250 1933750 2127125 3038750 4254250 10635625 21271250
- Sum of all divisors σ(n): 56681856
- Sum of proper divisors (its aliquot sum) s(n): 35410606
- 21271250 is an abundant number, because the sum of its proper divisors (35410606) is greater than itself. Its abundance is 14139356
Bases of 21271250
- Binary: 10100010010010010110100102
- Hexadecimal: 0x14492D2
- Base-36: CNX02
Squares and roots of 21271250
- 21271250 squared (212712502) is 452466076562500
- 21271250 cubed (212712503) is 9624519031080078125000
-
The
square root of 21271250 is 4612.0765388271 -
The
cube root of 21271250 is 277.0752097167
Scales and comparisons
How big is 21271250?- 21,271,250 seconds is equal to 35 weeks, 1 day, 4 hours, 40 minutes, 50 seconds.
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To count from 1 to 21,271,250 would take you about five days!
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 21271250 cubic inches would be around 23.1 feet tall.
Recreational maths with 21271250
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