389945 (number)

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.

Interesting facts

Basic properties

Name

Name three hundred eighty-nine thousand nine hundred forty-five

Notation

Scientific notation 3.89945 × 10^5
Engineering notation 3.89945 × 10^3

Prime Factorization of 389945

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.

Most popular turbo-numbers

Basic calculations (n = 389945)

Multiplication

n×y
n×2 779890
n×3 1169835
n×4 1559780
n×5 1949725

Division

n÷y
n÷2 194972.5
n÷3 129981.66666667
n÷3 97486.25
n÷5 77989

Exponentiation

ny
n2 152057103025
n3 59293907039083625
n4 2.3121362580355E+22
n5 9.0160597313967E+27

Nth Root

y√n
2√n 624.45576304491
3√n 73.058001067227
4√n 24.989112890315
5√n 13.128063575332

Divisors of 389945

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 conversion 389945

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

Cryptographic Hash Functions

md5 abf28040f363efc0a26da9708e5a500b
sha1 e6fc4cd783b202277a6bead88bc3b5651b0353e1
sha256 c20cfbf6819e6997d42d7ba356e4db58f32de30c3cf41fe5cadd22cea0eaef5f
sha512 fd7ca39220d20e045db2dcf41ae1e28bc039793f933d2375052f747998c8ad4c729dc1aad5b83e447d91da01c21646d3088405bb75e32f53a21aa40f42ac2c26
ripemd-160 24a7d9c8cab0ca101b90f9d89c8ded8b5bb8c87c

389945 as geometric shapes

Circle

Radius = n
Diameter 779890
Circumference 2450096.6946081
Area 477701477789.49

Sphere

Radius = n
Volume 2.4836973700883E+17
Surface area 1910805911157.9
Circumference 2450096.6946081

Square

Length = n
Perimeter 1559780
Area 152057103025
Diagonal 551465.50757958

Cube

Length = n
Surface area 912342618150
Volume 59293907039083625
Space diagonal 675404.55215745

Equilateral Triangle

Length = n
Perimeter 1169835
Area 65842657022.759
Altitude 337702.27607872

Triangular Pyramid

Length = n
Surface area 65842657022.759
Volume 6.9878539583968E+15
Height 183821.83585986