18939 (number)

18939 is an odd 5-digits composite number following 18938 and preceding 18940. In scientific notation, it is written as 1.8939 × 10^4. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 12296 positive integers (up to 18939) that are relatively prime to 18939.

Interesting facts

Basic properties

Name

Name eighteen thousand nine hundred thirty-nine

Notation

Scientific notation 1.8939 × 10^4
Engineering notation 1.8939 × 10^3

Prime Factorization of 18939

Prime Factorization 321 × 59

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18939
Product of the distinct prime numbers

The prime factorization of 18939 is 321 × 59. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 4, 74, 25, 316, 934, 114, 4422, 15753, 14860, 772233, 573479, 2986203, 6465218, 77217472, 16415520, 627206575, 820776973, 1463029635, 4000567590

Basic calculations (n = 18939)

Multiplication

n×y
n×2 37878
n×3 56817
n×4 75756
n×5 94695

Division

n÷y
n÷2 9469.5
n÷3 6313
n÷3 4734.75
n÷5 3787.8

Exponentiation

ny
n2 358685721
n3 6793148870019
n4 128655446449289841
n5 2.4366055003031E+21

Nth Root

y√n
2√n 137.61903938046
3√n 26.655429292997
4√n 11.731114157677
5√n 7.1692117648951

Divisors of 18939

1, 59, 321, 18939

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 -18938
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 18939 can be divided by 4 positive divisors. The sum of these divisors (counting 18939) is 1, the average is 0.25.

Base conversion 18939

Base System Value
2 Binary 100100111111011
3 Ternary 221222110
4 Quaternary 10213323
5 Quinary 1101224
6 Senary 223403
8 Octal 44773
10 Decimal 18939
12 Duodecimal ab63
16 Hexadecimal 49fb
20 Vigesimal 276j
36 Base36 em3

Cryptographic Hash Functions

md5 b3f9a0026fb6e31d468ed053f43eb6fb
sha1 9c8fb88c6d493c14cf723f4189690c8cc2d12244
sha256 b5751dd58cb9be1c9f3d1e2407d2187549ec4e6ae5137403f5d15a24fdb16b1c
sha512 c717c716eac57b41eaf0db71d96cb6d932fe80a982ec55d81c788177437682f0f300bd645b531d668b911a2d567660c2ad54915efb2c2318426eb119330a2f46
ripemd-160 52feefc0b68ccdd8d2b4468fdd295825b54bcca8

18939 as geometric shapes

Circle

Radius = n
Diameter 37878
Circumference 118997.24653267
Area 1126844426.0412

Sphere

Radius = n
Volume 28455075446391
Surface area 4507377704.1646
Circumference 118997.24653267

Square

Length = n
Perimeter 75756
Area 358685721
Diagonal 26783.790657784

Cube

Length = n
Surface area 2152114326
Volume 6793148870019
Space diagonal 32803.310244547

Equilateral Triangle

Length = n
Perimeter 56817
Area 155315473.18037
Altitude 16401.655122273

Triangular Pyramid

Length = n
Surface area 155315473.18037
Volume 800580271933.36
Height 8927.9302192614