145438 is an even 6-digits composite number following 145437
and preceding 145439 . In scientific notation, it is written as 1.45438 × 10^5.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 72718 positive integers (up to 145438) that are relatively prime to 145438.
145438 has 4 divisors, whose sum is 218160
The reverse of 145438 is 834541
Previous prime number is 2
Is Prime? no
Number parity even
Number length 6
Sum of Digits 25
Digital Root 7
Name
one hundred forty-five thousand four hundred thirty-eight
Scientific notation
1.45438 × 10^5
Engineering notation
1.45438 × 10^3
Prime Factorization
2 × 72719
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
145438
Product of the distinct prime numbers
The prime factorization of 145438 is 2 × 72719.
Since it has a total of 2 prime factors.
5 , 5 , 77 , 28 , 730 , 704 , 8813 , 3865 , 81483 , 35960 , 485425 , 125834 , 8501833 , 6960793 , 21699351 , 17656362 , 165350869 , 314726166 , 8535513829 , 8021976095
n×2
290876
n×3
436314
n×4
581752
n×5
727190
n÷2
72719
n÷3
48479.333333333
n÷3
36359.5
n÷5
29087.6
n2
21152211844
n3
3076335386167672
n4
4.4741606589345E+20
n5
6.5071297791412E+25
2 √n
381.36334380745
3 √n
52.588723746253
4 √n
19.528526411572
5 √n
10.777935462359
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
-145437
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 145438 can be divided by 4 positive divisors.
The sum of these divisors (counting 145438) is 1, the average is 0.25.
Base
System
Value
2
Binary
100011100000011110
3
Ternary
21101111121
4
Quaternary
203200132
5
Quinary
14123223
6
Senary
3041154
8
Octal
434036
10
Decimal
145438
12
Duodecimal
701ba
16
Hexadecimal
2381e
20
Vigesimal
i3bi
36
Base36
347y
md5
0c823a985bfb8a6c09af1e25e4e49026
sha1
25062b621051232217ce65390bdd89fd20283a50
sha256
c8f0db24479a79bc070d958db9d1ece1fc00252c93f8b3b303f2e24c8c0ab99d
sha512
9d721de5c22f323b188bf239fe61d1159f0d2411273b2e39f0dc682edabd55f27750d8cadd657646aaf1390b088b526a734a5b7dd1bf829c062b6aba4e487235
ripemd-160
e7563816400ae50030f576b508d7a482aab14487
Diameter
290876
Circumference
913813.90470558
Area
66451633336.285
Volume
1.2886123532217E+16
Surface area
265806533345.14
Circumference
913813.90470558
Perimeter
581752
Area
21152211844
Diagonal
205680.39208442
Surface area
126913271064
Volume
3076335386167672
Space diagonal
251906.0053512
Perimeter
436314
Area
9159176401.567
Altitude
125953.0026756
Surface area
9159176401.567
Volume
3.6254960212722E+14
Height
68560.130694806