20138481 is an odd 8-digits composite number following 20138480
and preceding 20138482 . In scientific notation, it is written as 2.0138481 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 12205080 positive integers (up to 20138481) that are relatively prime to 20138481.
20138481 has 12 divisors, whose sum is 31733520
The reverse of 20138481 is 18483102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred thirty-eight thousand four hundred eighty-one
Scientific notation
2.0138481 × 10^7
Engineering notation
2.0138481 × 10^6
Prime Factorization
3 × 3 × 11 × 203419
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6712827
Product of the distinct prime numbers
The prime factorization of 20138481 is 3 × 3 × 11 × 203419.
Since it has a total of 4 prime factors.
1 , 6 , 51 , 18 , 934 , 14 , 5429 , 3388 , 16243 , 7560 , 468669 , 944303 , 5628220 , 1917734 , 1249878 , 61816219 , 290340634 , 303639541 , 4098963959 , 6641426269
n×2
40276962
n×3
60415443
n×4
80553924
n×5
100692405
n÷2
10069240.5
n÷3
6712827
n÷3
5034620.25
n÷5
4027696.2
n2
405558416987361
n3
8.16733047489E+21
n4
1.6447762958929E+29
n5
3.312329618409E+36
2 √n
4487.5918932095
3 √n
272.0668133518
4 √n
66.989490916184
5 √n
28.893845214267
1 , 3 , 9 , 11 , 33 , 99 , 203419 , 610257 , 1830771 , 2237609 , 6712827 , 20138481
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138480
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138481 can be divided by 12 positive divisors.
The sum of these divisors (counting 20138481) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110100100111110001
3
Ternary
1101220010210200
4
Quaternary
1030310213301
5
Quinary
20123412411
6
Senary
1555345413
8
Octal
114644761
10
Decimal
20138481
12
Duodecimal
68b2269
16
Hexadecimal
13349f1
20
Vigesimal
65h641
36
Base36
bzmy9
md5
1ba67b0a05d1848305c369a0a1ad1e15
sha1
21d7b282322b830e488a3f1caa372db64ef9c5a1
sha256
b81159e396b010a4c93716201611ac393200e75ed75b26d85b36a909bee9d66f
sha512
a3566f3692d8f158f09b5dd4bdef1768a631d3d22c3caf2c94b19a8722ad4714310f2a60a648a102c5f6830c68caf632900b56210b5a5e5fb23ff61fb8fa0658
ripemd-160
612c094dca4786a4300ce11e35b6197167708a77
Diameter
40276962
Circumference
126533807.92812
Area
1.274099343409E+15
Volume
3.4211233892473E+22
Surface area
5.096397373636E+15
Circumference
126533807.92812
Perimeter
80553924
Area
405558416987361
Diagonal
28480112.955793
Surface area
2433350501924166
Volume
8.16733047489E+21
Space diagonal
34880872.27926
Perimeter
60415443
Area
1.7561194591483E+14
Altitude
17440436.13963
Surface area
1.7561194591483E+14
Volume
9.6252912716438E+20
Height
9493370.9852643