21381007500
21,381,007,500 is an even composite number composed of five prime numbers multiplied together.
What does the number 21381007500 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 270 divisors.
21381007500 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred seventy divisors.
Prime factorization of 21381007500:
22 × 32 × 54 × 83 × 1072
(2 × 2 × 3 × 3 × 5 × 5 × 5 × 5 × 83 × 107 × 107)See below for interesting mathematical facts about the number 21381007500 from the Numbermatics database.
Names of 21381007500
- Cardinal: 21381007500 can be written as Twenty-one billion, three hundred eighty-one million, seven thousand, five hundred.
Scientific notation
- Scientific notation: 2.13810075 × 1010
Factors of 21381007500
Divisors of 21381007500
- Number of divisors d(n): 270
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 83 90 100 107 125 150 166 180 214 225 249 250 300 321 332 375 415 428 450 498 500 535 625 642 747 750 830 900 963 996 1070 1125 1245 1250 1284 1494 1500 1605 1660 1875 1926 2075 2140 2250 2490 2500 2675 2988 3210 3735 3750 3852 4150 4500 4815 4980 5350 5625 6225 6420 7470 7500 8025 8300 8881 9630 10375 10700 11250 11449 12450 13375 14940 16050 17762 18675 19260 20750 22500 22898 24075 24900 26643 26750 31125 32100 34347 35524 37350 40125 41500 44405 45796 48150 51875 53286 53500 57245 62250 66875 68694 74700 79929 80250 88810 93375 96300 103041 103750 106572 114490 120375 124500 133215 133750 137388 155625 159858 160500 171735 177620 186750 200625 206082 207500 222025 228980 240750 266430 267500 286225 311250 319716 343470 373500 399645 401250 412164 444050 466875 481500 515205 532860 572450 601875 622500 666075 686940 799290 802500 858675 888100 933750 950267 1030410 1110125 1144900 1203750 1332150 1431125 1598580 1717350 1867500 1900534 1998225 2060820 2220250 2407500 2576025 2664300 2850801 2862250 3330375 3434700 3801068 3996450 4293375 4440500 4751335 5152050 5550625 5701602 5724500 6660750 7155625 7992900 8552403 8586750 9502670 9991125 10304100 11101250 11403204 12880125 13321500 14254005 14311250 16651875 17104806 17173500 19005340 19982250 21466875 22202500 23756675 25760250 28508010 28622500 33303750 34209612 39964500 42762015 42933750 47513350 49955625 51520500 57016020 64400625 66607500 71270025 85524030 85867500 95026700 99911250 118783375 128801250 142540050 171048060 199822500 213810075 237566750 257602500 285080100 356350125 427620150 475133500 593916875 712700250 855240300 1069050375 1187833750 1425400500 1781750625 2138100750 2375667500 3563501250 4276201500 5345251875 7127002500 10690503750 21381007500
- Sum of all divisors σ(n): 68994873948
- Sum of proper divisors (its aliquot sum) s(n): 47613866448
- 21381007500 is an abundant number, because the sum of its proper divisors (47613866448) is greater than itself. Its abundance is 26232858948
Bases of 21381007500
- Binary: 100111110100110100001001000100011002
- Hexadecimal: 0x4FA68488C
- Base-36: 9TLP6Z0
Squares and roots of 21381007500
- 21381007500 squared (213810075002) is 457147481715056250000
- 21381007500 cubed (213810075003) is 9774273735155730544171875000000
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The
square root of 21381007500 is 146222.4589452659 -
The
cube root of 21381007500 is 2775.5095241651
Scales and comparisons
How big is 21381007500?- 21,381,007,500 seconds is equal to 679 years, 44 weeks, 1 day, 8 hours, 45 minutes.
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To count from 1 to 21,381,007,500 would take you about one thousand, three hundred fifty-nine years!
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 21381007500 cubic inches would be around 231.3 feet tall.
Recreational maths with 21381007500
- 21381007500 backwards is 00570018312
- The number of decimal digits it has is: 11
- The sum of 21381007500's digits is 27
- More coming soon!
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