21312144
21,312,144 is an even composite number composed of four prime numbers multiplied together.
21312144 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 21312144:
24 × 32 × 7 × 21143
(2 × 2 × 2 × 2 × 3 × 3 × 7 × 21143)See below for interesting mathematical facts about the number 21312144 from the Numbermatics database.
Names of 21312144
- Cardinal: 21312144 can be written as Twenty-one million, three hundred twelve thousand, one hundred forty-four.
Scientific notation
- Scientific notation: 2.1312144 × 107
Factors of 21312144
Divisors of 21312144
- Number of divisors d(n): 60
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 21143 42286 63429 84572 126858 148001 169144 190287 253716 296002 338288 380574 444003 507432 592004 761148 888006 1014864 1184008 1332009 1522296 1776012 2368016 2664018 3044592 3552024 5328036 7104048 10656072 21312144
- Sum of all divisors σ(n): 68168256
- Sum of proper divisors (its aliquot sum) s(n): 46856112
- 21312144 is an abundant number, because the sum of its proper divisors (46856112) is greater than itself. Its abundance is 25543968
Bases of 21312144
- Binary: 10100010100110010100100002
- Hexadecimal: 0x1453290
- Base-36: COSK0
Squares and roots of 21312144
- 21312144 squared (213121442) is 454207481876736
- 21312144 cubed (213121443) is 9680135259634387881984
-
The
square root of 21312144 is 4616.5077710321 -
The
cube root of 21312144 is 277.2526551773
Scales and comparisons
How big is 21312144?- 21,312,144 seconds is equal to 35 weeks, 1 day, 16 hours, 2 minutes, 24 seconds.
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To count from 1 to 21,312,144 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 21312144 cubic inches would be around 23.1 feet tall.
Recreational maths with 21312144
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The information we have on file for 21312144 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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