20657890 is an even 8-digits composite number following 20657889
and preceding 20657891 . In scientific notation, it is written as 2.0657890 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 7069440 positive integers (up to 20657890) that are relatively prime to 20657890.
20657890 has 16 divisors, whose sum is 34204608
The reverse of 20657890 is 09875602
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million six hundred fifty-seven thousand eight hundred ninety
Scientific notation
2.0657890 × 10^7
Engineering notation
2.0657890 × 10^6
Prime Factorization
2 × 85 × 11 × 11047
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20657890
Product of the distinct prime numbers
The prime factorization of 20657890 is 2 × 85 × 11 × 11047.
Since it has a total of 4 prime factors.
8 , 5 , 42 , 17 , 458 , 955 , 1948 , 4455 , 610 , 2913 , 743326 , 571614 , 6374140 , 9401515 , 36608177 , 11426602 , 719124671 , 397165954 , 1401901042 , 7634901552
n×2
41315780
n×3
61973670
n×4
82631560
n×5
103289450
n÷2
10328945
n÷3
6885963.3333333
n÷3
5164472.5
n÷5
4131578
n2
426748419252100
n3
8.8157219025838E+21
n4
1.8211421333417E+29
n5
3.7620953864937E+36
2 √n
4545.0951585198
3 √n
274.38602417295
4 √n
67.417320908798
5 √n
29.041376162342
1 , 2 , 11 , 22 , 85 , 170 , 935 , 1870 , 11047 , 22094 , 121517 , 243034 , 938995 , 1877990 , 10328945 , 20657890
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
-20657889
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 20657890 can be divided by 16 positive divisors.
The sum of these divisors (counting 20657890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110110011011011100010
3
Ternary
1102212112022001
4
Quaternary
1032303123202
5
Quinary
20242023030
6
Senary
2014434214
8
Octal
116633342
10
Decimal
20657890
12
Duodecimal
6b0296a
16
Hexadecimal
13b36e2
20
Vigesimal
6924ea
36
Base36
carqa
md5
a4d7f9037675361bb230ab66e54d66e3
sha1
72c11992986daae68a37571f2028206a756af2cd
sha256
27bed4dd501416baedb5e09e603c47cd273486c24a642f8394b65ba4005eac40
sha512
ad7250a067c07d22db2234c326c5ef6662dce0cf925105f7711bf5ace945120b2f5655ef21c26e56ba09340220c9ce05c4022fcfa2f22550bc4df5049deae68b
ripemd-160
ca439d4d8a90011748c2c6e319cec878da80d529
Diameter
41315780
Circumference
129797350.92533
Area
1.3406696988535E+15
Volume
3.6927209553664E+22
Surface area
5.3626787954138E+15
Circumference
129797350.92533
Perimeter
82631560
Area
426748419252100
Diagonal
29214668.208012
Surface area
2560490515512600
Volume
8.8157219025838E+21
Space diagonal
35780515.057169
Perimeter
61973670
Area
1.8478748604859E+14
Altitude
17890257.528585
Surface area
1.8478748604859E+14
Volume
1.0389427897286E+21
Height
9738222.7360038