21031200
21,031,200 is an even composite number composed of five prime numbers multiplied together.
21031200 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 21031200:
25 × 32 × 52 × 23 × 127
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 23 × 127)See below for interesting mathematical facts about the number 21031200 from the Numbermatics database.
Names of 21031200
- Cardinal: 21031200 can be written as Twenty-one million, thirty-one thousand, two hundred.
Scientific notation
- Scientific notation: 2.10312 × 107
Factors of 21031200
Divisors of 21031200
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 25 30 32 36 40 45 46 48 50 60 69 72 75 80 90 92 96 100 115 120 127 138 144 150 160 180 184 200 207 225 230 240 254 276 288 300 345 360 368 381 400 414 450 460 480 508 552 575 600 635 690 720 736 762 800 828 900 920 1016 1035 1104 1143 1150 1200 1270 1380 1440 1524 1656 1725 1800 1840 1905 2032 2070 2208 2286 2300 2400 2540 2760 2921 3048 3175 3312 3450 3600 3680 3810 4064 4140 4572 4600 5080 5175 5520 5715 5842 6096 6350 6624 6900 7200 7620 8280 8763 9144 9200 9525 10160 10350 11040 11430 11684 12192 12700 13800 14605 15240 16560 17526 18288 18400 19050 20320 20700 22860 23368 25400 26289 27600 28575 29210 30480 33120 35052 36576 38100 41400 43815 45720 46736 50800 52578 55200 57150 58420 60960 70104 73025 76200 82800 87630 91440 93472 101600 105156 114300 116840 131445 140208 146050 152400 165600 175260 182880 210312 219075 228600 233680 262890 280416 292100 304800 350520 420624 438150 457200 467360 525780 584200 657225 701040 841248 876300 914400 1051560 1168400 1314450 1402080 1752600 2103120 2336800 2628900 3505200 4206240 5257800 7010400 10515600 21031200
- Sum of all divisors σ(n): 77995008
- Sum of proper divisors (its aliquot sum) s(n): 56963808
- 21031200 is an abundant number, because the sum of its proper divisors (56963808) is greater than itself. Its abundance is 35932608
Bases of 21031200
- Binary: 10100000011101001001000002
- Hexadecimal: 0x140E920
- Base-36: CIRS0
Squares and roots of 21031200
- 21031200 squared (210312002) is 442311373440000
- 21031200 cubed (210312003) is 9302338957091328000000
-
The
square root of 21031200 is 4585.9786305653 -
The
cube root of 21031200 is 276.0289824637
Scales and comparisons
How big is 21031200?- 21,031,200 seconds is equal to 34 weeks, 5 days, 10 hours.
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To count from 1 to 21,031,200 would take you about three hours!
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 21031200 cubic inches would be around 23 feet tall.
Recreational maths with 21031200
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