20661838 is an even 8-digits composite number following 20661837
and preceding 20661839 . In scientific notation, it is written as 2.0661838 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 10090080 positive integers (up to 20661838) that are relatively prime to 20661838.
20661838 has 16 divisors, whose sum is 31720896
The reverse of 20661838 is 83816602
Previous prime number is 421
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million six hundred sixty-one thousand eight hundred thirty-eight
Scientific notation
2.0661838 × 10^7
Engineering notation
2.0661838 × 10^6
Prime Factorization
2 × 53 × 421 × 463
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20661838
Product of the distinct prime numbers
The prime factorization of 20661838 is 2 × 53 × 421 × 463.
Since it has a total of 4 prime factors.
4 , 10 , 40 , 76 , 814 , 987 , 5229 , 5930 , 7171 , 88675 , 211885 , 468011 , 2699291 , 843099 , 60103409 , 11512243 , 626570796 , 693623248 , 5792009272 , 3290313637
n×2
41323676
n×3
61985514
n×4
82647352
n×5
103309190
n÷2
10330919
n÷3
6887279.3333333
n÷3
5165459.5
n÷5
4132367.6
n2
426911549538244
n3
8.8207772768882E+21
n4
1.8225347112914E+29
n5
3.7656916954081E+36
2 √n
4545.5294521101
3 √n
274.40350267666
4 √n
67.420541766661
5 √n
29.042486116836
1 , 2 , 53 , 106 , 421 , 463 , 842 , 926 , 22313 , 24539 , 44626 , 49078 , 194923 , 389846 , 10330919 , 20661838
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20661837
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20661838 can be divided by 16 positive divisors.
The sum of these divisors (counting 20661838) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110110100011001001110
3
Ternary
1102212201201021
4
Quaternary
1032310121032
5
Quinary
20242134323
6
Senary
2014504354
8
Octal
116643116
10
Decimal
20661838
12
Duodecimal
6b050ba
16
Hexadecimal
13b464e
20
Vigesimal
692ebi
36
Base36
caury
md5
0b03b88ce9b8edab6f8a60a2f3ce7d10
sha1
e82f0f801222070385f90012849d1c12625703cf
sha256
e1a74c3c0467488354f4370dc425c38b44b7719e112b8772c3e94b72d587fa39
sha512
3b8365dffe210438cce308c4cebda85a4b48f668d939c23ea2550ef47b4dfecacc0893514b4f19a960fc1637962f4f06bb7f090404cadc0ea7464d55e94c3c84
ripemd-160
8d18fb93ce2622ece94ff1d2b5d0194749b71f9c
Diameter
41323676
Circumference
129822156.94092
Area
1.341182187762E+15
Volume
3.6948385456032E+22
Surface area
5.3647287510479E+15
Circumference
129822156.94092
Perimeter
82647352
Area
426911549538244
Diagonal
29220251.523156
Surface area
2561469297229464
Volume
8.8207772768882E+21
Space diagonal
35787353.193757
Perimeter
61985514
Area
1.8485812353455E+14
Altitude
17893676.596879
Surface area
1.8485812353455E+14
Volume
1.039538571304E+21
Height
9740083.8410519