20971898 is an even 8-digits composite number following 20971897
and preceding 20971899 . In scientific notation, it is written as 2.0971898 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 10485948 positive integers (up to 20971898) that are relatively prime to 20971898.
20971898 has 4 divisors, whose sum is 31457850
The reverse of 20971898 is 89817902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million nine hundred seventy-one thousand eight hundred ninety-eight
Scientific notation
2.0971898 × 10^7
Engineering notation
2.0971898 × 10^6
Prime Factorization
2 × 10485949
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20971898
Product of the distinct prime numbers
The prime factorization of 20971898 is 2 × 10485949.
Since it has a total of 2 prime factors.
1 , 5 , 17 , 4 , 972 , 283 , 8258 , 7698 , 99681 , 59835 , 218224 , 75974 , 7469789 , 3024489 , 33364850 , 39913012 , 526224263 , 874745242 , 8322746894 , 4988971851
n×2
41943796
n×3
62915694
n×4
83887592
n×5
104859490
n÷2
10485949
n÷3
6990632.6666667
n÷3
5242974.5
n÷5
4194379.6
n2
439820505722404
n3
9.2238707843187E+21
n4
1.9344207725391E+29
n5
4.0568475130771E+36
2 √n
4579.5084889101
3 √n
275.76929716698
4 √n
67.672065794611
5 √n
29.129132254568
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20971897
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20971898 can be divided by 4 positive divisors.
The sum of these divisors (counting 20971898) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000000000101111010
3
Ternary
1110110111000222
4
Quaternary
1100000011322
5
Quinary
20332100043
6
Senary
2025300042
8
Octal
120000572
10
Decimal
20971898
12
Duodecimal
7034622
16
Hexadecimal
140017a
20
Vigesimal
6b19ei
36
Base36
chi0q
md5
88fece8875b665715c5af06061780794
sha1
bef5337521aca0976187bee41407f02af4dc7eaf
sha256
3d70fa78de419c364841487f3f0a915491159e099f896d35bcaa1e51d856eb4b
sha512
fbd2b9478a9b0adb02ae0700b6e9b6ff01862957744b6ae0cf568292cdb659bd7282910157be907b9eb0ef9737783ba044357fc3f3b78c3bd7fbfbe9b7f619cd
ripemd-160
0f9659421f99d5e77e4b5c1ee6710b3f3d7f6260
Diameter
41943796
Circumference
131770321.37727
Area
1.3817368696757E+15
Volume
3.8636859591569E+22
Surface area
5.5269474787026E+15
Circumference
131770321.37727
Perimeter
83887592
Area
439820505722404
Diagonal
29658742.580305
Surface area
2638923034334424
Volume
9.2238707843187E+21
Space diagonal
36324392.867152
Perimeter
62915694
Area
1.9044786553046E+14
Altitude
18162196.433576
Surface area
1.9044786553046E+14
Volume
1.08704359673E+21
Height
9886247.5267684