20512138 is an even 8-digits composite number following 20512137
and preceding 20512139 . In scientific notation, it is written as 2.0512138 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 10247340 positive integers (up to 20512138) that are relatively prime to 20512138.
20512138 has 8 divisors, whose sum is 30794400
The reverse of 20512138 is 83121502
Previous prime number is 1399
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million five hundred twelve thousand one hundred thirty-eight
Scientific notation
2.0512138 × 10^7
Engineering notation
2.0512138 × 10^6
Prime Factorization
2 × 1399 × 7331
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20512138
Product of the distinct prime numbers
The prime factorization of 20512138 is 2 × 1399 × 7331.
Since it has a total of 3 prime factors.
2 , 8 , 57 , 57 , 227 , 405 , 9115 , 2902 , 54198 , 68942 , 710758 , 798189 , 4004396 , 9586334 , 51125217 , 92828256 , 58855961 , 11653815 , 3633108099 , 7304152051
n×2
41024276
n×3
61536414
n×4
82048552
n×5
102560690
n÷2
10256069
n÷3
6837379.3333333
n÷3
5128034.5
n÷5
4102427.6
n2
420747805331044
n3
8.6304370461475E+21
n4
1.7702871569089E+29
n5
3.6312374462143E+36
2 √n
4529.0327885764
3 √n
273.73918919241
4 √n
67.298089041045
5 √n
29.000279657145
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
-20512137
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 20512138 can be divided by 8 positive divisors.
The sum of these divisors (counting 20512138) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111110110001010
3
Ternary
1102121010100211
4
Quaternary
1032033312022
5
Quinary
20222342023
6
Senary
2011351334
8
Octal
116176612
10
Decimal
20512138
12
Duodecimal
6a5254a
16
Hexadecimal
138fd8a
20
Vigesimal
68406i
36
Base36
c7n9m
md5
d66b0f3aad9cc664d0c0c3f8c394c8d9
sha1
b7bbabc21cb6f2524a2c88a23c302ecec34e592e
sha256
e2aa44fb548a16161de08c1e92f8985ceedee871f61add736a326b87b2bef5ea
sha512
b3c1976e5ad7dcd6258e9dcedebec6b627343d6855102e36bf4f72e8c728f2ba976023e63d769f5ff230ae7997488d5bc1100d90be9bbc00b2174212a176dc6d
ripemd-160
b834f177f4fd7b0c9cda129b4ae87deb9b8ff09e
Diameter
41024276
Circumference
128881564.10044
Area
1.321818214242E+15
Volume
3.6151090161928E+22
Surface area
5.2872728569681E+15
Circumference
128881564.10044
Perimeter
82048552
Area
420747805331044
Diagonal
29008543.752869
Surface area
2524486831986264
Volume
8.6304370461475E+21
Space diagonal
35528065.187864
Perimeter
61536414
Area
1.8218914400162E+14
Altitude
17764032.593932
Surface area
1.8218914400162E+14
Volume
1.0171067599891E+21
Height
9669514.5842895