20108181 is an odd 8-digits composite number following 20108180
and preceding 20108182 . In scientific notation, it is written as 2.0108181 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 12972960 positive integers (up to 20108181) that are relatively prime to 20108181.
20108181 has 8 divisors, whose sum is 27675904
The reverse of 20108181 is 18180102
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred eight thousand one hundred eighty-one
Scientific notation
2.0108181 × 10^7
Engineering notation
2.0108181 × 10^6
Prime Factorization
3 × 31 × 216217
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20108181
Product of the distinct prime numbers
The prime factorization of 20108181 is 3 × 31 × 216217.
Since it has a total of 3 prime factors.
6 , 10 , 60 , 20 , 948 , 769 , 8571 , 3758 , 97821 , 57711 , 261521 , 777655 , 6891255 , 57221 , 18352943 , 66733293 , 863331111 , 383843864 , 6338221916 , 6809142939
n×2
40216362
n×3
60324543
n×4
80432724
n×5
100540905
n÷2
10054090.5
n÷3
6702727
n÷3
5027045.25
n÷5
4021636.2
n2
404338943128761
n3
8.1305206537818E+21
n4
1.6348998093048E+29
n5
3.2874861282367E+36
2 √n
4484.2146469588
3 √n
271.93029590033
4 √n
66.964278887768
5 √n
28.885145343796
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
-20108180
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 20108181 can be divided by 8 positive divisors.
The sum of these divisors (counting 20108181) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101101001110010101
3
Ternary
1101211121020110
4
Quaternary
1030231032111
5
Quinary
20121430211
6
Senary
1554553233
8
Octal
114551625
10
Decimal
20108181
12
Duodecimal
6898819
16
Hexadecimal
132d395
20
Vigesimal
65da91
36
Base36
byzkl
md5
11382d7241af051c15d301ea3c010220
sha1
7ce862d547b46a4ecfbfa568066be77c8388dffe
sha256
4678e8caa8b5016ff8a903c5fc94b6abd30a7aa758648c3d065764e5ee3580af
sha512
a61b8f9c6d9d219ea3596c5ffafae57d13959a5a5ebdf67c8038dcb829424ab325b1cef9878d5d1750d65b783bfca3698e3f3a8455b361f0008f74da9382a9ac
ripemd-160
c38bac912380818205d5cc7111637ae098f01c89
Diameter
40216362
Circumference
126343427.41331
Area
1.2702682532936E+15
Volume
3.4057045274375E+22
Surface area
5.0810730131743E+15
Circumference
126343427.41331
Perimeter
80432724
Area
404338943128761
Diagonal
28437262.284853
Surface area
2426033658772566
Volume
8.1305206537818E+21
Space diagonal
34828391.139791
Perimeter
60324543
Area
1.7508389824443E+14
Altitude
17414195.569896
Surface area
1.7508389824443E+14
Volume
9.581910481444E+20
Height
9479087.4282843