20191291 is an odd 8-digits composite number following 20191290
and preceding 20191292 . In scientific notation, it is written as 2.0191291 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 19003552 positive integers (up to 20191291) that are relatively prime to 20191291.
20191291 has 4 divisors, whose sum is 21379032
The reverse of 20191291 is 19219102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred ninety-one thousand two hundred ninety-one
Scientific notation
2.0191291 × 10^7
Engineering notation
2.0191291 × 10^6
Prime Factorization
17 × 1187723
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20191291
Product of the distinct prime numbers
The prime factorization of 20191291 is 17 × 1187723.
Since it has a total of 2 prime factors.
2 , 4 , 9 , 77 , 917 , 462 , 1040 , 1831 , 93801 , 21166 , 355741 , 652699 , 9450449 , 2608777 , 73171810 , 77504734 , 641959464 , 365609891 , 3692095910 , 4429220260
n×2
40382582
n×3
60573873
n×4
80765164
n×5
100956455
n÷2
10095645.5
n÷3
6730430.3333333
n÷3
5047822.75
n÷5
4038258.2
n2
407688232246681
n3
8.2317517345683E+21
n4
1.6620969471242E+29
n5
3.3559883129597E+36
2 √n
4493.472042864
3 √n
272.30442325457
4 √n
67.0333651465
5 √n
28.908983256934
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
-20191290
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 20191291 can be divided by 4 positive divisors.
The sum of these divisors (counting 20191291) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000001100000111011
3
Ternary
1101222211020121
4
Quaternary
1031001200323
5
Quinary
20132110131
6
Senary
2000434111
8
Octal
115014073
10
Decimal
20191291
12
Duodecimal
6918937
16
Hexadecimal
134183b
20
Vigesimal
663i4b
36
Base36
c0rp7
md5
7f091c4456cba5cd37e1263953b06154
sha1
c99508e94c3c6b85cafdbbee4f9d71a5ec53460e
sha256
aec593d31fc0481c01e12b651a0b5747879bad44a22efb12229403c013bbd658
sha512
b407e017557f2131cff6e896d908dc38d3764b1a597cbde8cc6a7694dea65c971388400577d43485a64f05d28e521c4402ee7e29620a3d2bdec916d3d8bef64e
ripemd-160
936eb0bfcfd6ab4a0f32693424705cb97dfd45d3
Diameter
40382582
Circumference
126865622.94419
Area
1.2807903553812E+15
Volume
3.4481081033993E+22
Surface area
5.1231614215247E+15
Circumference
126865622.94419
Perimeter
80765164
Area
407688232246681
Diagonal
28554797.574022
Surface area
2446129393480086
Volume
8.2317517345683E+21
Space diagonal
34972341.882408
Perimeter
60573873
Area
1.765341829748E+14
Altitude
17486170.941204
Surface area
1.765341829748E+14
Volume
9.7012124542623E+20
Height
9518265.8580073