20138923 is an odd 8-digits composite number following 20138922
and preceding 20138924 . In scientific notation, it is written as 2.0138923 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 17214120 positive integers (up to 20138923) that are relatively prime to 20138923.
20138923 has 8 divisors, whose sum is 23079680
The reverse of 20138923 is 32983102
Previous prime number is 379
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred thirty-eight thousand nine hundred twenty-three
Scientific notation
2.0138923 × 10^7
Engineering notation
2.0138923 × 10^6
Prime Factorization
7 × 379 × 7591
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138923
Product of the distinct prime numbers
The prime factorization of 20138923 is 7 × 379 × 7591.
Since it has a total of 3 prime factors.
9 , 7 , 32 , 5 , 396 , 677 , 7831 , 5755 , 50694 , 28244 , 634160 , 773292 , 1509635 , 7800203 , 57921114 , 27226376 , 772823170 , 431996516 , 3932577821 , 3762919956
n×2
40277846
n×3
60416769
n×4
80555692
n×5
100694615
n÷2
10069461.5
n÷3
6712974.3333333
n÷3
5034730.75
n÷5
4027784.6
n2
405576219599929
n3
8.1678682571541E+21
n4
1.6449206990497E+29
n5
3.3126931299268E+36
2 √n
4487.6411398417
3 √n
272.06880378083
4 √n
66.98985848501
5 √n
28.893972045754
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
-20138922
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 20138923 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138923) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100101110101011
3
Ternary
1101220011102001
4
Quaternary
1030310232223
5
Quinary
20123421143
6
Senary
1555351431
8
Octal
114645653
10
Decimal
20138923
12
Duodecimal
68b2577
16
Hexadecimal
1334bab
20
Vigesimal
65h763
36
Base36
bznaj
md5
7748bd041e8bc2b59b59603f8591d095
sha1
05474444fe19a1d9e38288307747acc686942bfd
sha256
766690cf26b98c94dc6bfc286ffd82cf89e0475214d9ba8a92cab9fc1270fe39
sha512
33a9c9764ae4a78fbe8ac74ad9873851346861394245137f093867c8302910a2fcd660b18c1b23ea8b751de099bbb3aee160f6f14e244470176bbaf44f50fd97
ripemd-160
76338ae4ec5fbc15c8ed4481f55045631e82ea9d
Diameter
40277846
Circumference
126536585.09602
Area
1.2741552719659E+15
Volume
3.4213486549553E+22
Surface area
5.0966210878634E+15
Circumference
126536585.09602
Perimeter
80555692
Area
405576219599929
Diagonal
28480738.038187
Surface area
2433457317599574
Volume
8.1678682571541E+21
Space diagonal
34881637.845717
Perimeter
60416769
Area
1.756196546722E+14
Altitude
17440818.922859
Surface area
1.756196546722E+14
Volume
9.62592505412E+20
Height
9493579.3460625