20391321 is an odd 8-digits composite number following 20391320
and preceding 20391322 . In scientific notation, it is written as 2.0391321 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13125392 positive integers (up to 20391321) that are relatively prime to 20391321.
20391321 has 8 divisors, whose sum is 28126080
The reverse of 20391321 is 12319302
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million three hundred ninety-one thousand three hundred twenty-one
Scientific notation
2.0391321 × 10^7
Engineering notation
2.0391321 × 10^6
Prime Factorization
3 × 29 × 234383
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20391321
Product of the distinct prime numbers
The prime factorization of 20391321 is 3 × 29 × 234383.
Since it has a total of 3 prime factors.
1 , 4 , 98 , 13 , 884 , 89 , 984 , 9607 , 2371 , 26034 , 411518 , 620582 , 6048660 , 636827 , 6424218 , 95926270 , 15826861 , 822626416 , 9480872323 , 7263871420
n×2
40782642
n×3
61173963
n×4
81565284
n×5
101956605
n÷2
10195660.5
n÷3
6797107
n÷3
5097830.25
n÷5
4078264.2
n2
415805972125041
n3
8.4788330513188E+21
n4
1.7289460645485E+29
n5
3.5255494193895E+36
2 √n
4515.6750325948
3 √n
273.20068700983
4 √n
67.198772552739
5 √n
28.966036411553
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20391320
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20391321 can be divided by 8 positive divisors.
The sum of these divisors (counting 20391321) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110010010110011001
3
Ternary
1102100222122010
4
Quaternary
1031302112121
5
Quinary
20210010241
6
Senary
2005020133
8
Octal
115622631
10
Decimal
20391321
12
Duodecimal
69b4649
16
Hexadecimal
1372599
20
Vigesimal
678i61
36
Base36
c521l
md5
883cc69c678a34ed5cc66ac017e33f64
sha1
eabbf173d7d558ffeb17d61e5d6daf93366c8f23
sha256
9937fa3a50122e7f1e82e206256174a7f19b88f8e5b1a9fa90da67ebd2948fa4
sha512
8b662177dad50ca3cde28726a1e5e2e1c6df8a9dc1e745623ecefed7cffb200e7edc7caa7e186e2880680ceb3380a438827cd63d8a37ab3cc6732998f056d184
ripemd-160
3caa686632774bf503c9bbf010e998cc4606d03d
Diameter
40782642
Circumference
128122448.50118
Area
1.3062929873468E+15
Volume
3.5516052833383E+22
Surface area
5.2251719493872E+15
Circumference
128122448.50118
Perimeter
81565284
Area
415805972125041
Diagonal
28837682.712903
Surface area
2494835832750246
Volume
8.4788330513188E+21
Space diagonal
35318804.005446
Perimeter
61173963
Area
1.8004926745278E+14
Altitude
17659402.002723
Surface area
1.8004926745278E+14
Volume
9.9924005785602E+20
Height
9612560.9043011