389991 (number)

389991 is an odd 6-digits composite number following 389990 and preceding 389992. In scientific notation, it is written as 3.89991 × 10^5. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 222264 positive integers (up to 389991) that are relatively prime to 389991.

Interesting facts

Basic properties

Name

Name three hundred eighty-nine thousand nine hundred ninety-one

Notation

Scientific notation 3.89991 × 10^5
Engineering notation 3.89991 × 10^3

Prime Factorization of 389991

Prime Factorization 3 × 7 × 49 × 379

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 389991
Product of the distinct prime numbers

The prime factorization of 389991 is 3 × 7 × 49 × 379. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 389991)

Multiplication

n×y
n×2 779982
n×3 1169973
n×4 1559964
n×5 1949955

Division

n÷y
n÷2 194995.5
n÷3 129997
n÷3 97497.75
n÷5 77998.2

Exponentiation

ny
n2 152092980081
n3 59314893394769271
n4 2.3132274589919E+22
n5 9.0213788995973E+27

Nth Root

y√n
2√n 624.49259403135
3√n 73.060873725261
4√n 24.989849820104
5√n 13.128373292051

Divisors of 389991

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -389990
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 389991 can be divided by 16 positive divisors. The sum of these divisors (counting 389991) is 1, the average is 0.0625.

Base conversion 389991

Base System Value
2 Binary 1011111001101100111
3 Ternary 201210222010
4 Quaternary 1133031213
5 Quinary 44434431
6 Senary 12205303
8 Octal 1371547
10 Decimal 389991
12 Duodecimal 169833
16 Hexadecimal 5f367
20 Vigesimal 28ejb
36 Base36 8cx3

Cryptographic Hash Functions

md5 061074331b346cff0ac4052ae91b9a95
sha1 be20a400474ab22260a4e1f9dc8c28833617e2d1
sha256 eb19a49c777cf436c7cddec65d5f80fea1bf4b662b45003c067e16389246f835
sha512 2a39a5648add96d1074b5fae5df14c8f623cbd4baf267ee98fea79f53cc221f9b2ba4d9db61e4ab7f413a27fb36a7e228ee48771faa327915d3f241f16df29ab
ripemd-160 0876f1d6eb90e0c6f61dd3a8c8e8431a31fc0614

389991 as geometric shapes

Circle

Radius = n
Diameter 779982
Circumference 2450385.7211323
Area 477814188885.05

Sphere

Radius = n
Volume 2.4845764444996E+17
Surface area 1911256755540.2
Circumference 2450385.7211323

Square

Length = n
Perimeter 1559964
Area 152092980081
Diagonal 551530.56140345

Cube

Length = n
Surface area 912557880486
Volume 59314893394769271
Space diagonal 675484.22649459

Equilateral Triangle

Length = n
Perimeter 1169973
Area 65858192243.713
Altitude 337742.1132473

Triangular Pyramid

Length = n
Surface area 65858192243.713
Volume 6.9903272241331E+15
Height 183843.52046782