20351491 is an odd 8-digits composite number following 20351490
and preceding 20351492 . In scientific notation, it is written as 2.0351491 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20017800 positive integers (up to 20351491) that are relatively prime to 20351491.
20351491 has 4 divisors, whose sum is 20685184
The reverse of 20351491 is 19415302
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million three hundred fifty-one thousand four hundred ninety-one
Scientific notation
2.0351491 × 10^7
Engineering notation
2.0351491 × 10^6
Prime Factorization
61 × 333631
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20351491
Product of the distinct prime numbers
The prime factorization of 20351491 is 61 × 333631.
Since it has a total of 2 prime factors.
9 , 10 , 3 , 58 , 940 , 92 , 2928 , 427 , 41042 , 39082 , 182093 , 425989 , 4010591 , 8498598 , 84913984 , 1880264 , 813764852 , 254718493 , 2881824624 , 154592225
n×2
40702982
n×3
61054473
n×4
81405964
n×5
101757455
n÷2
10175745.5
n÷3
6783830.3333333
n÷3
5087872.75
n÷5
4070298.2
n2
414183185923081
n3
8.4292453806649E+21
n4
1.7154771150139E+29
n5
3.4912517066912E+36
2 √n
4511.262683551
3 √n
273.0226917409
4 √n
67.165933951305
5 √n
28.954711792592
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
-20351490
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 20351491 can be divided by 4 positive divisors.
The sum of these divisors (counting 20351491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101101000101000000011
3
Ternary
1102021221222221
4
Quaternary
1031220220003
5
Quinary
20202221431
6
Senary
2004111511
8
Octal
115505003
10
Decimal
20351491
12
Duodecimal
6995597
16
Hexadecimal
1368a03
20
Vigesimal
673ieb
36
Base36
c47b7
md5
6647481a6be1582104eea9b580ccd008
sha1
0d994064a89c13b319d0e3314410b0fe3a730d95
sha256
45260eee3f502c70d1fdb3584d65ba350274e5eb6537f0d82572bf0f1fcc67d2
sha512
7cc5b6d8fcbc6ed31b98e7d8041581f723212635fc45cc960c44b725aa07c04ffacdf87497b756801c5b035519958d5be0c63c6cbeb0155ef51c19f88d6c02fa
ripemd-160
8e02ce1af4498bfd60224b202ed66fd4bef5b2f6
Diameter
40702982
Circumference
127872189.2304
Area
1.3011948541364E+15
Volume
3.530834048427E+22
Surface area
5.2047794165455E+15
Circumference
127872189.2304
Perimeter
81405964
Area
414183185923081
Diagonal
28781354.586714
Surface area
2485099115538486
Volume
8.4292453806649E+21
Space diagonal
35249816.421781
Perimeter
61054473
Area
1.7934658041488E+14
Altitude
17624908.21089
Surface area
1.7934658041488E+14
Volume
9.9339609482559E+20
Height
9593784.862238