389985 (number)

389985 is an odd 6-digits composite number following 389984 and preceding 389986. In scientific notation, it is written as 3.89985 × 10^5. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 207984 positive integers (up to 389985) that are relatively prime to 389985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.89985 × 10^5
Engineering notation 3.89985 × 10^3

Prime Factorization of 389985

Prime Factorization 15 × 25999

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 389985
Product of the distinct prime numbers

The prime factorization of 389985 is 15 × 25999. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 5, 13, 45, 153, 322, 4605, 6487, 76143, 77726, 529055, 913040, 9370308, 2684613, 20576657, 72728642, 418228817, 401767476, 2143509022, 7525700134

Basic calculations (n = 389985)

Multiplication

n×y
n×2 779970
n×3 1169955
n×4 1559940
n×5 1949925

Division

n÷y
n÷2 194992.5
n÷3 129995
n÷3 97496.25
n÷5 77997

Exponentiation

ny
n2 152088300225
n3 59312155763246625
n4 2.313085106533E+22
n5 9.0206849527126E+27

Nth Root

y√n
2√n 624.48779011283
3√n 73.060499043545
4√n 24.989753702524
5√n 13.128332895876

Divisors of 389985

1, 15, 25999, 389985

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 -389984
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 389985 can be divided by 4 positive divisors. The sum of these divisors (counting 389985) is 1, the average is 0.25.

Base conversion 389985

Base System Value
2 Binary 1011111001101100001
3 Ternary 201210221220
4 Quaternary 1133031201
5 Quinary 44434420
6 Senary 12205253
8 Octal 1371541
10 Decimal 389985
12 Duodecimal 169829
16 Hexadecimal 5f361
20 Vigesimal 28ej5
36 Base36 8cwx

Cryptographic Hash Functions

md5 81c84d52bab7d9c924a16a6ca78a88d1
sha1 8e52a2e6c8b48c5fd96927d102c089627377f609
sha256 13fdcbfcc4b6f4c7087ed49190696ee5b5baf244121a5f3d1e584551c57ef948
sha512 182f7af2c365802b55bc06327ef83358f78cc599f5374f3dcdb661706ff276f484109f8f35af51653de89bbc328019eb07c15f67e9da4f74e49ee5f1723bea7c
ripemd-160 123d33d13e5729c3b265b3507d0b330f7049208b

389985 as geometric shapes

Circle

Radius = n
Diameter 779970
Circumference 2450348.0220204
Area 477799486683.82

Sphere

Radius = n
Volume 2.4844617708585E+17
Surface area 1911197946735.3
Circumference 2450348.0220204

Square

Length = n
Perimeter 1559940
Area 152088300225
Diagonal 551522.07612207

Cube

Length = n
Surface area 912529801350
Volume 59312155763246625
Space diagonal 675473.83418975

Equilateral Triangle

Length = n
Perimeter 1169955
Area 65856165806.622
Altitude 337736.91709487

Triangular Pyramid

Length = n
Surface area 65856165806.622
Volume 6.9900045911641E+15
Height 183840.69204069