20397691 is an odd 8-digits prime number following 20397690
and preceding 20397692 . In scientific notation, it is written as 2.0397691 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 20397690 positive integers (up to 20397691) that are relatively prime to 20397691.
20397691 has 2 divisors, whose sum is 20397692
The reverse of 20397691 is 19679302
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million three hundred ninety-seven thousand six hundred ninety-one
Scientific notation
2.0397691 × 10^7
Engineering notation
2.0397691 × 10^6
Prime Factorization
20397691
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20397691
Product of the distinct prime numbers
The prime factorization of 20397691 is 20397691.
Since it has a total of 1 prime factors.
9 , 7 , 53 , 5 , 89 , 581 , 9390 , 3523 , 13933 , 43644 , 504127 , 661194 , 9771246 , 6517734 , 75867718 , 68378402 , 240036128 , 290515250 , 1136316876 , 2415464095
n×2
40795382
n×3
61193073
n×4
81590764
n×5
101988455
n÷2
10198845.5
n÷3
6799230.3333333
n÷3
5099422.75
n÷5
4079538.2
n2
416065798131481
n3
8.4867815859543E+21
n4
1.7311074837479E+29
n5
3.5310595541276E+36
2 √n
4516.3802984248
3 √n
273.22913223566
4 √n
67.204019957327
5 √n
28.967845912765
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20397692
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10198846
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4516.380409133
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999019497
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20397691 can be divided by 2 positive divisors.
The sum of these divisors (counting 20397691) is 20397692, the average is 10198846.
Base
System
Value
2
Binary
1001101110011111001111011
3
Ternary
1102101022101001
4
Quaternary
1031303321323
5
Quinary
20210211231
6
Senary
2005105431
8
Octal
115637173
10
Decimal
20397691
12
Duodecimal
69b8277
16
Hexadecimal
1373e7b
20
Vigesimal
679e4b
36
Base36
c56yj
md5
70accca451388db139a495ccc4e5fc4a
sha1
a97eb1c007d9eeddc255cb62a2dc96b34b8a77ce
sha256
243389eca668d08e5f217e2786764f2cab4c67d0ef6d85b761bc46311e74705e
sha512
827d600eee327ff6c2c3f10904102c443c0e1233460c3583d43f751f4fd3ecb39eae5e16b5220f2ee318b8bac73224c022094f68ac569e7e043e90ca29c70b92
ripemd-160
a4eee5ae15a12e3f1371149397b73d53a82e3da7
Diameter
40795382
Circumference
128162472.39159
Area
1.3071092548198E+15
Volume
3.5549347577407E+22
Surface area
5.2284370192793E+15
Circumference
128162472.39159
Perimeter
81590764
Area
416065798131481
Diagonal
28846691.253296
Surface area
2496394788788886
Volume
8.4867815859543E+21
Space diagonal
35329837.16909
Perimeter
61193073
Area
1.8016177541386E+14
Altitude
17664918.584545
Surface area
1.8016177541386E+14
Volume
1.0001768016462E+21
Height
9615563.7510985