20021791 is an odd 8-digits composite number following 20021790
and preceding 20021792 . In scientific notation, it is written as 2.0021791 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 20012400 positive integers (up to 20021791) that are relatively prime to 20021791.
20021791 has 4 divisors, whose sum is 20031184
The reverse of 20021791 is 19712002
Previous prime number is 3271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million twenty-one thousand seven hundred ninety-one
Scientific notation
2.0021791 × 10^7
Engineering notation
2.0021791 × 10^6
Prime Factorization
3271 × 6121
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20021791
Product of the distinct prime numbers
The prime factorization of 20021791 is 3271 × 6121.
Since it has a total of 2 prime factors.
2 , 6 , 22 , 47 , 74 , 827 , 1608 , 2797 , 98817 , 12829 , 238656 , 766996 , 9569523 , 3165593 , 66558449 , 3739455 , 806972218 , 77787389 , 4652235880 , 1259353087
n×2
40043582
n×3
60065373
n×4
80087164
n×5
100108955
n÷2
10010895.5
n÷3
6673930.3333333
n÷3
5005447.75
n÷5
4004358.2
n2
400872114847681
n3
8.0261777012083E+21
n4
1.6069845246245E+29
n5
3.2174708292267E+36
2 √n
4474.5715996059
3 √n
271.5403090012
4 √n
66.892238709778
5 √n
28.860282954413
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
-20021790
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 20021791 can be divided by 4 positive divisors.
The sum of these divisors (counting 20021791) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100011000001000011111
3
Ternary
1101200012201211
4
Quaternary
1030120020133
5
Quinary
20111144131
6
Senary
1553045251
8
Octal
114301037
10
Decimal
20021791
12
Duodecimal
6856827
16
Hexadecimal
131821f
20
Vigesimal
652e9b
36
Base36
bx4wv
md5
556e19f8ebcaa30b13529ad404baa1b3
sha1
8329bd3a23d1e883c8460517e75743dbfb3d6950
sha256
e0aa1c730a8bc1d0336521f4a2921124648d702d9a82f29cad3c7bccb22e3d45
sha512
78de867cb9025a6cb515890e32983435bd8f678fea0a385763f10d8f20489ad99d6875c2791f04ed149e6e34f2243af4d3f8b0624db96c08dd122da11364f67e
ripemd-160
e294a393b796938cbef00d77272943cf21e73dfc
Diameter
40043582
Circumference
125800623.03462
Area
1.2593768910345E+15
Volume
3.3619974536696E+22
Surface area
5.0375075641379E+15
Circumference
125800623.03462
Perimeter
80087164
Area
400872114847681
Diagonal
28315088.3752
Surface area
2405232689086086
Volume
8.0261777012083E+21
Space diagonal
34678759.270525
Perimeter
60065373
Area
1.7358271756344E+14
Altitude
17339379.635263
Surface area
1.7358271756344E+14
Volume
9.4589411325544E+20
Height
9438362.7917332