389945 is an odd 6-digits composite number following 389944
and preceding 389946 . In scientific notation, it is written as 3.89945 × 10^5.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 309424 positive integers (up to 389945) that are relatively prime to 389945.
389945 has 8 divisors, whose sum is 471744
The reverse of 389945 is 549983
Previous prime number is 167
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 38
Digital Root 2
Name
three hundred eighty-nine thousand nine hundred forty-five
Scientific notation
3.89945 × 10^5
Engineering notation
3.89945 × 10^3
Prime Factorization
5 × 167 × 467
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
389945
Product of the distinct prime numbers
The prime factorization of 389945 is 5 × 167 × 467.
Since it has a total of 3 prime factors.
7 , 2 , 82 , 44 , 280 , 238 , 7789 , 8070 , 11830 , 46440 , 365823 , 69101 , 9188305 , 1341514 , 10815065 , 47876004 , 570173913 , 716172729 , 1571207128 , 8944489482
n×2
779890
n×3
1169835
n×4
1559780
n×5
1949725
n÷2
194972.5
n÷3
129981.66666667
n÷3
97486.25
n÷5
77989
n2
152057103025
n3
59293907039083625
n4
2.3121362580355E+22
n5
9.0160597313967E+27
2 √n
624.45576304491
3 √n
73.058001067227
4 √n
24.989112890315
5 √n
13.128063575332
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
-389944
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 389945 can be divided by 8 positive divisors.
The sum of these divisors (counting 389945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1011111001100111001
3
Ternary
201210220102
4
Quaternary
1133030321
5
Quinary
44434240
6
Senary
12205145
8
Octal
1371471
10
Decimal
389945
12
Duodecimal
1697b5
16
Hexadecimal
5f339
20
Vigesimal
28eh5
36
Base36
8cvt
md5
abf28040f363efc0a26da9708e5a500b
sha1
e6fc4cd783b202277a6bead88bc3b5651b0353e1
sha256
c20cfbf6819e6997d42d7ba356e4db58f32de30c3cf41fe5cadd22cea0eaef5f
sha512
fd7ca39220d20e045db2dcf41ae1e28bc039793f933d2375052f747998c8ad4c729dc1aad5b83e447d91da01c21646d3088405bb75e32f53a21aa40f42ac2c26
ripemd-160
24a7d9c8cab0ca101b90f9d89c8ded8b5bb8c87c
Diameter
779890
Circumference
2450096.6946081
Area
477701477789.49
Volume
2.4836973700883E+17
Surface area
1910805911157.9
Circumference
2450096.6946081
Perimeter
1559780
Area
152057103025
Diagonal
551465.50757958
Surface area
912342618150
Volume
59293907039083625
Space diagonal
675404.55215745
Perimeter
1169835
Area
65842657022.759
Altitude
337702.27607872
Surface area
65842657022.759
Volume
6.9878539583968E+15
Height
183821.83585986