20138081 is an odd 8-digits composite number following 20138080
and preceding 20138082 . In scientific notation, it is written as 2.0138081 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 17955648 positive integers (up to 20138081) that are relatively prime to 20138081.
20138081 has 8 divisors, whose sum is 22445280
The reverse of 20138081 is 18083102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred thirty-eight thousand eighty-one
Scientific notation
2.0138081 × 10^7
Engineering notation
2.0138081 × 10^6
Prime Factorization
19 × 17 × 62347
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138081
Product of the distinct prime numbers
The prime factorization of 20138081 is 19 × 17 × 62347.
Since it has a total of 3 prime factors.
6 , 7 , 17 , 90 , 224 , 572 , 3821 , 2072 , 85857 , 25942 , 592918 , 830694 , 4411852 , 5425517 , 5472397 , 24912420 , 902060163 , 319213251 , 3646755251 , 4739217848
n×2
40276162
n×3
60414243
n×4
80552324
n×5
100690405
n÷2
10069040.5
n÷3
6712693.6666667
n÷3
5034520.25
n÷5
4027616.2
n2
405542306362561
n3
8.1668438144561E+21
n4
1.6446456224987E+29
n5
3.3120006762173E+36
2 √n
4487.5473256557
3 √n
272.06501203345
4 √n
66.989158269497
5 √n
28.893730432721
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
-20138080
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 20138081 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138081) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100100001100001
3
Ternary
1101220010020212
4
Quaternary
1030310201201
5
Quinary
20123404311
6
Senary
1555343505
8
Octal
114644141
10
Decimal
20138081
12
Duodecimal
68b1b95
16
Hexadecimal
1334861
20
Vigesimal
65h541
36
Base36
bzmn5
md5
060eaa05cbab797ae36c7749aacee31e
sha1
da8b5c09c8a228898d09bafb263637c54271cd81
sha256
a32994b49f303d6084c72a05ad0ae5188e44efb8b2b72a7b7de4738937ddf9b2
sha512
b475ca7b8e714ffcd4c108d61471cd5bf1949c6adfccc85f106adda893a19b39fa812abcb5ba5fdd9c8c8611e295d36ae00c96a1d761359a1219722fee5389e8
ripemd-160
54c5cb67f678069a5a17ef06780393bc46d1c4c2
Diameter
40276162
Circumference
126531294.65399
Area
1.2740487303885E+15
Volume
3.4209195374014E+22
Surface area
5.0961949215539E+15
Circumference
126531294.65399
Perimeter
80552324
Area
405542306362561
Diagonal
28479547.270368
Surface area
2433253838175366
Volume
8.1668438144561E+21
Space diagonal
34880179.458937
Perimeter
60414243
Area
1.7560496980965E+14
Altitude
17440089.729469
Surface area
1.7560496980965E+14
Volume
9.6247177368222E+20
Height
9493182.423456