21361200
21,361,200 is an even composite number composed of five prime numbers multiplied together.
21361200 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 21361200:
24 × 3 × 52 × 7 × 2543
(2 × 2 × 2 × 2 × 3 × 5 × 5 × 7 × 2543)See below for interesting mathematical facts about the number 21361200 from the Numbermatics database.
Names of 21361200
- Cardinal: 21361200 can be written as Twenty-one million, three hundred sixty-one thousand, two hundred.
Scientific notation
- Scientific notation: 2.13612 × 107
Factors of 21361200
Divisors of 21361200
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 35 40 42 48 50 56 60 70 75 80 84 100 105 112 120 140 150 168 175 200 210 240 280 300 336 350 400 420 525 560 600 700 840 1050 1200 1400 1680 2100 2543 2800 4200 5086 7629 8400 10172 12715 15258 17801 20344 25430 30516 35602 38145 40688 50860 53403 61032 63575 71204 76290 89005 101720 106806 122064 127150 142408 152580 178010 190725 203440 213612 254300 267015 284816 305160 356020 381450 427224 445025 508600 534030 610320 712040 762900 854448 890050 1017200 1068060 1335075 1424080 1525800 1780100 2136120 2670150 3051600 3560200 4272240 5340300 7120400 10680600 21361200
- Sum of all divisors σ(n): 78233088
- Sum of proper divisors (its aliquot sum) s(n): 56871888
- 21361200 is an abundant number, because the sum of its proper divisors (56871888) is greater than itself. Its abundance is 35510688
Bases of 21361200
- Binary: 10100010111110010001100002
- Hexadecimal: 0x145F230
- Base-36: CPUEO
Squares and roots of 21361200
- 21361200 squared (213612002) is 456300865440000
- 21361200 cubed (213612003) is 9747134046836928000000
-
The
square root of 21361200 is 4621.8178241899 -
The
cube root of 21361200 is 277.4652176193
Scales and comparisons
How big is 21361200?- 21,361,200 seconds is equal to 35 weeks, 2 days, 5 hours, 40 minutes.
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To count from 1 to 21,361,200 would take you about six 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 21361200 cubic inches would be around 23.1 feet tall.
Recreational maths with 21361200
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