20138231 is an odd 8-digits composite number following 20138230
and preceding 20138232 . In scientific notation, it is written as 2.0138231 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 19709712 positive integers (up to 20138231) that are relatively prime to 20138231.
20138231 has 4 divisors, whose sum is 20566752
The reverse of 20138231 is 13283102
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred thirty-eight thousand two hundred thirty-one
Scientific notation
2.0138231 × 10^7
Engineering notation
2.0138231 × 10^6
Prime Factorization
47 × 428473
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20138231
Product of the distinct prime numbers
The prime factorization of 20138231 is 47 × 428473.
Since it has a total of 2 prime factors.
1 , 3 , 47 , 32 , 779 , 562 , 5837 , 8725 , 22529 , 67154 , 157782 , 156150 , 8838395 , 9347769 , 59502313 , 44568577 , 157043389 , 965139885 , 8751492413 , 8264688956
n×2
40276462
n×3
60414693
n×4
80552924
n×5
100691155
n÷2
10069115.5
n÷3
6712743.6666667
n÷3
5034557.75
n÷5
4027646.2
n2
405548347809361
n3
8.1670263098533E+21
n4
1.644694624109E+29
n5
3.3121240264766E+36
2 √n
4487.5640385403
3 √n
272.06568753063
4 √n
66.989283012586
5 √n
28.893773476014
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
-20138230
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 20138231 can be divided by 4 positive divisors.
The sum of these divisors (counting 20138231) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100100011110111
3
Ternary
1101220010110102
4
Quaternary
1030310203313
5
Quinary
20123410411
6
Senary
1555344315
8
Octal
114644367
10
Decimal
20138231
12
Duodecimal
68b209b
16
Hexadecimal
13348f7
20
Vigesimal
65h5bb
36
Base36
bzmrb
md5
228b24e66971b8b46d557a0cbede87c9
sha1
42ef10463b49273a9d7eea2b0bf2e96345f8167a
sha256
9a6f1f188a6cd4d007a4cd6d0e0bba9fad08569cd95851c6b875ec23b203c577
sha512
e5e79cf3a254f4d566f4ebcaf02675d868d237e1e743171effd57956599e306ecdb758fc3e59f86d3eaa955f37ecbf90e8bf0718933be53d8f0109f47db97dfc
ripemd-160
4874da88e7da67e3b91ae2cee1df34c073f55b58
Diameter
40276462
Circumference
126532237.13179
Area
1.2740677101534E+15
Volume
3.4209959808946E+22
Surface area
5.0962708406135E+15
Circumference
126532237.13179
Perimeter
80552924
Area
405548347809361
Diagonal
28479759.402402
Surface area
2433290086856166
Volume
8.1670263098533E+21
Space diagonal
34880439.266559
Perimeter
60414693
Area
1.7560758583286E+14
Altitude
17440219.633279
Surface area
1.7560758583286E+14
Volume
9.6249328097103E+20
Height
9493253.1341341