20138155 is an odd 8-digits composite number following 20138154
and preceding 20138156 . In scientific notation, it is written as 2.0138155 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 16110520 positive integers (up to 20138155) that are relatively prime to 20138155.
20138155 has 4 divisors, whose sum is 24165792
The reverse of 20138155 is 55183102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred thirty-eight thousand one hundred fifty-five
Scientific notation
2.0138155 × 10^7
Engineering notation
2.0138155 × 10^6
Prime Factorization
5 × 4027631
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20138155
Product of the distinct prime numbers
The prime factorization of 20138155 is 5 × 4027631.
Since it has a total of 2 prime factors.
4 , 6 , 30 , 71 , 965 , 505 , 181 , 7041 , 43775 , 26636 , 201596 , 436146 , 8304672 , 3971492 , 71558025 , 80947939 , 860167105 , 859985115 , 9522950499 , 2191081121
n×2
40276310
n×3
60414465
n×4
80552620
n×5
100690775
n÷2
10069077.5
n÷3
6712718.3333333
n÷3
5034538.75
n÷5
4027631
n2
405545286804025
n3
8.1669338451789E+21
n4
1.6446697964896E+29
n5
3.3120615285526E+36
2 √n
4487.5555706866
3 √n
272.06534527914
4 √n
66.989219809508
5 √n
28.893751667444
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
-20138154
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 20138155 can be divided by 4 positive divisors.
The sum of these divisors (counting 20138155) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100100010101011
3
Ternary
1101220010100121
4
Quaternary
1030310202223
5
Quinary
20123410110
6
Senary
1555344111
8
Octal
114644253
10
Decimal
20138155
12
Duodecimal
68b2037
16
Hexadecimal
13348ab
20
Vigesimal
65h57f
36
Base36
bzmp7
md5
7340c09cbdb77b512954c9942ffbd558
sha1
255df0ae04ed441916c156da0ea44dc184ce9e2a
sha256
7da91ffc6859650fcbf5bcb58b4d9f88431ba6ef413c26e55e6dd1abe665ba2e
sha512
d22dfc5bdb77d8ab8e56e28f3d55d31bd0598a7e96786339e966039985c39f6d4fbd239119051fe9e60642d39fc028ec6bc322a851b6007e2eeef3c6aab0429c
ripemd-160
46226ba44ffe8930a79f1b0f6c5282dd12e5226b
Diameter
40276310
Circumference
126531759.60971
Area
1.2740580937215E+15
Volume
3.4209572493824E+22
Surface area
5.096232374886E+15
Circumference
126531759.60971
Perimeter
80552620
Area
405545286804025
Diagonal
28479651.922172
Surface area
2433271720824150
Volume
8.1669338451789E+21
Space diagonal
34880307.630697
Perimeter
60414465
Area
1.7560626037867E+14
Altitude
17440153.815349
Surface area
1.7560626037867E+14
Volume
9.6248238390466E+20
Height
9493217.3073905