20640080
20,640,080 is an even composite number composed of five prime numbers multiplied together.
20640080 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 20640080:
24 × 5 × 19 × 37 × 367
(2 × 2 × 2 × 2 × 5 × 19 × 37 × 367)See below for interesting mathematical facts about the number 20640080 from the Numbermatics database.
Names of 20640080
- Cardinal: 20640080 can be written as Twenty million, six hundred forty thousand and eighty.
Scientific notation
- Scientific notation: 2.064008 × 107
Factors of 20640080
Divisors of 20640080
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 16 19 20 37 38 40 74 76 80 95 148 152 185 190 296 304 367 370 380 592 703 734 740 760 1406 1468 1480 1520 1835 2812 2936 2960 3515 3670 5624 5872 6973 7030 7340 11248 13579 13946 14060 14680 27158 27892 28120 29360 34865 54316 55784 56240 67895 69730 108632 111568 135790 139460 217264 258001 271580 278920 516002 543160 557840 1032004 1086320 1290005 2064008 2580010 4128016 5160020 10320040 20640080
- Sum of all divisors σ(n): 52020480
- Sum of proper divisors (its aliquot sum) s(n): 31380400
- 20640080 is an abundant number, because the sum of its proper divisors (31380400) is greater than itself. Its abundance is 10740320
Bases of 20640080
- Binary: 10011101011110001010100002
- Hexadecimal: 0x13AF150
- Base-36: CADZK
Squares and roots of 20640080
- 20640080 squared (206400802) is 426012902406400
- 20640080 cubed (206400803) is 8792940386700288512000
-
The
square root of 20640080 is 4543.1354811407 -
The
cube root of 20640080 is 274.3071484161
Scales and comparisons
How big is 20640080?- 20,640,080 seconds is equal to 34 weeks, 21 hours, 21 minutes, 20 seconds.
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To count from 1 to 20,640,080 would take you about fifty-one weeks!
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 20640080 cubic inches would be around 22.9 feet tall.
Recreational maths with 20640080
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