20351391 is an odd 8-digits composite number following 20351390
and preceding 20351392 . In scientific notation, it is written as 2.0351391 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 13567592 positive integers (up to 20351391) that are relatively prime to 20351391.
20351391 has 4 divisors, whose sum is 27135192
The reverse of 20351391 is 19315302
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million three hundred fifty-one thousand three hundred ninety-one
Scientific notation
2.0351391 × 10^7
Engineering notation
2.0351391 × 10^6
Prime Factorization
3 × 6783797
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20351391
Product of the distinct prime numbers
The prime factorization of 20351391 is 3 × 6783797.
Since it has a total of 2 prime factors.
3 , 4 , 1 , 80 , 480 , 507 , 2485 , 1352 , 56697 , 41677 , 724316 , 559109 , 6475257 , 3224578 , 86200800 , 54146435 , 73087045 , 376917752 , 4648815575 , 6531010984
n×2
40702782
n×3
61054173
n×4
81405564
n×5
101756955
n÷2
10175695.5
n÷3
6783797
n÷3
5087847.75
n÷5
4070278.2
n2
414179115634881
n3
8.4291211263197E+21
n4
1.7154433982809E+29
n5
3.4911659336784E+36
2 √n
4511.251600166
3 √n
273.02224456132
4 √n
67.165851443765
5 √n
28.954683337902
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
-20351390
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 20351391 can be divided by 4 positive divisors.
The sum of these divisors (counting 20351391) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101101000100110011111
3
Ternary
1102021221212020
4
Quaternary
1031220212133
5
Quinary
20202221031
6
Senary
2004111223
8
Octal
115504637
10
Decimal
20351391
12
Duodecimal
6995513
16
Hexadecimal
136899f
20
Vigesimal
673i9b
36
Base36
c478f
md5
4cce4e9105b6be08c4fc6865ce200b78
sha1
85197903ed3e7b51edfe6995049d07e37aa79911
sha256
9793e9a6ca03c78a577d60073b42abb44ec9b7d41cce4a5b03ba5ead71023509
sha512
b02cb6b0a73eda7585439ab303e65729446bc9bdc6b390a00353fdb1edc324b9bdcab91dba26fcd010879fb96f4681afe61d229d032de96571072c594f51fe56
ripemd-160
9501f5d16cfade56a12d7013b6511cbc585ebb8a
Diameter
40702782
Circumference
127871560.91187
Area
1.3011820669489E+15
Volume
3.5307820008886E+22
Surface area
5.2047282677954E+15
Circumference
127871560.91187
Perimeter
81405564
Area
414179115634881
Diagonal
28781213.165358
Surface area
2485074693809286
Volume
8.4291211263197E+21
Space diagonal
35249643.2167
Perimeter
61054173
Area
1.7934481792839E+14
Altitude
17624821.60835
Surface area
1.7934481792839E+14
Volume
9.9338145131057E+20
Height
9593737.7217859