20138423 is an odd 8-digits composite number following 20138422
and preceding 20138424 . In scientific notation, it is written as 2.0138423 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 18992448 positive integers (up to 20138423) that are relatively prime to 20138423.
20138423 has 8 divisors, whose sum is 21294000
The reverse of 20138423 is 32483102
Previous prime number is 233
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred thirty-eight thousand four hundred twenty-three
Scientific notation
2.0138423 × 10^7
Engineering notation
2.0138423 × 10^6
Prime Factorization
19 × 233 × 4549
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138423
Product of the distinct prime numbers
The prime factorization of 20138423 is 19 × 233 × 4549.
Since it has a total of 3 prime factors.
5 , 1 , 29 , 12 , 229 , 799 , 6722 , 8287 , 16213 , 13364 , 324342 , 711845 , 390611 , 5272586 , 55876934 , 41513720 , 615888755 , 847441587 , 1406615448 , 5045141688
n×2
40276846
n×3
60415269
n×4
80553692
n×5
100692115
n÷2
10069211.5
n÷3
6712807.6666667
n÷3
5034605.75
n÷5
4027684.6
n2
405556080926929
n3
8.1672599079287E+21
n4
1.6447573477681E+29
n5
3.3122819201712E+36
2 √n
4487.5854309417
3 √n
272.06655216212
4 √n
66.989442682722
5 √n
28.893828571055
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
-20138422
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 20138423 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138423) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100100110110111
3
Ternary
1101220010201112
4
Quaternary
1030310212313
5
Quinary
20123412143
6
Senary
1555345235
8
Octal
114644667
10
Decimal
20138423
12
Duodecimal
68b221b
16
Hexadecimal
13349b7
20
Vigesimal
65h613
36
Base36
bzmwn
md5
03bf892016afdb4a219cd6052e9cd3f2
sha1
975cca57161eebf88a584c492cd56ec07e57e2a0
sha256
e6ea290008fb70ae4f9a7ea2a7ee00ee88cc024b1c5605aadad5ad5ef2fae52b
sha512
43ce5e1b18f063c15289322c4256311767c9f53575fbc5b06b7692ece8e5ffbe23a87c90f4ef7a7f6bdd757ffb6acad7981e17cb5b9e89034586987722c22449
ripemd-160
a7758bae2c3cb4bf5848deb576b474f0b5f9d573
Diameter
40276846
Circumference
126533443.50337
Area
1.2740920044587E+15
Volume
3.4210938302276E+22
Surface area
5.0963680178348E+15
Circumference
126533443.50337
Perimeter
80553692
Area
405556080926929
Diagonal
28480030.931406
Surface area
2433336485561574
Volume
8.1672599079287E+21
Space diagonal
34880771.820314
Perimeter
60415269
Area
1.7561093437099E+14
Altitude
17440385.910157
Surface area
1.7561093437099E+14
Volume
9.6252081076824E+20
Height
9493343.6438021