20531181 is an odd 8-digits composite number following 20531180
and preceding 20531182 . In scientific notation, it is written as 2.0531181 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 12443120 positive integers (up to 20531181) that are relatively prime to 20531181.
20531181 has 8 divisors, whose sum is 29863584
The reverse of 20531181 is 18113502
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million five hundred thirty-one thousand one hundred eighty-one
Scientific notation
2.0531181 × 10^7
Engineering notation
2.0531181 × 10^6
Prime Factorization
3 × 11 × 622157
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20531181
Product of the distinct prime numbers
The prime factorization of 20531181 is 3 × 11 × 622157.
Since it has a total of 3 prime factors.
8 , 10 , 32 , 50 , 622 , 982 , 5464 , 6799 , 32816 , 8170 , 993015 , 174566 , 3625883 , 6538095 , 42031881 , 5488589 , 436110651 , 786593231 , 2820149983 , 4708198628
n×2
41062362
n×3
61593543
n×4
82124724
n×5
102655905
n÷2
10265590.5
n÷3
6843727
n÷3
5132795.25
n÷5
4106236.2
n2
421529393254761
n3
8.6544962697337E+21
n4
1.7768702937773E+29
n5
3.6481245615064E+36
2 √n
4531.1346261174
3 √n
273.82387405979
4 √n
67.31370310804
5 √n
29.005662298002
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
-20531180
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 20531181 can be divided by 8 positive divisors.
The sum of these divisors (counting 20531181) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110010100011111101101
3
Ternary
1102122002111010
4
Quaternary
1032110133231
5
Quinary
20223444211
6
Senary
2012015433
8
Octal
116243755
10
Decimal
20531181
12
Duodecimal
6a61579
16
Hexadecimal
13947ed
20
Vigesimal
6867j1
36
Base36
c81yl
md5
70e2bc07d51e817aa577fc2b78ab37de
sha1
89b9bfba04b14ed80045c35554c6e8a7c46ee04b
sha256
da7da2dd8b4b69ab829661bd60b1a6e61c0bec26ff057357ee1cf2e6fc3394cb
sha512
dd250e5a010d5a47a1c4b75b5440fe323ed0cdd6d4e469a368cff6d457309a9492ac7132fe3ed04f0fc76497ea1a3ef50abe4063f6fd75ba5228a0ce4b69e982
ripemd-160
4960ae7c3bb64412be94c69b4240eedf0cab2a71
Diameter
41062362
Circumference
129001214.79824
Area
1.3242736451213E+15
Volume
3.6251869202021E+22
Surface area
5.2970945804853E+15
Circumference
129001214.79824
Perimeter
82124724
Area
421529393254761
Diagonal
29035474.621737
Surface area
2529176359528566
Volume
8.6544962697337E+21
Space diagonal
35561048.631393
Perimeter
61593543
Area
1.8252758150023E+14
Altitude
17780524.315696
Surface area
1.8252758150023E+14
Volume
1.0199421666804E+21
Height
9678491.5405789