18938 (number)

18938 is an even 5-digits composite number following 18937 and preceding 18939. In scientific notation, it is written as 1.8938 × 10^4. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 8896 positive integers (up to 18938) that are relatively prime to 18938.

Interesting facts

Basic properties

Name

Name eighteen thousand nine hundred thirty-eight

Notation

Scientific notation 1.8938 × 10^4
Engineering notation 1.8938 × 10^3

Prime Factorization of 18938

Prime Factorization 2 × 17 × 557

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18938
Product of the distinct prime numbers

The prime factorization of 18938 is 2 × 17 × 557. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 7, 88, 95, 316, 213, 5543, 1451, 88548, 94877, 914941, 30468, 9130625, 3638484, 3370297, 46820544, 875095240, 908604864, 4385435593, 3357536956

Basic calculations (n = 18938)

Multiplication

n×y
n×2 37876
n×3 56814
n×4 75752
n×5 94690

Division

n÷y
n÷2 9469
n÷3 6312.6666666667
n÷3 4734.5
n÷5 3787.6

Exponentiation

ny
n2 358647844
n3 6792072869672
n4 128628276005848336
n5 2.4359622909988E+21

Nth Root

y√n
2√n 137.61540611429
3√n 26.654960139426
4√n 11.730959300683
5√n 7.1691360548451

Divisors of 18938

1, 2, 17, 34, 557, 1114, 9469, 18938

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 -18937
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 18938 can be divided by 8 positive divisors. The sum of these divisors (counting 18938) is 1, the average is 0.125.

Base conversion 18938

Base System Value
2 Binary 100100111111010
3 Ternary 221222102
4 Quaternary 10213322
5 Quinary 1101223
6 Senary 223402
8 Octal 44772
10 Decimal 18938
12 Duodecimal ab62
16 Hexadecimal 49fa
20 Vigesimal 276i
36 Base36 em2

Cryptographic Hash Functions

md5 f7b0853a6fd3070db89dd3674754d695
sha1 b7f43e3a50f5657f53c34d487b895ca7deea6b18
sha256 4a5cb793315b2703474c9ddd0238292ef628222db3778f72af81c07ef33ac6d9
sha512 dc5f8f88a22185084db7854464bba5cd61417dc0c9bc3c260430d2aa8afd1f9202382a95d2bec98c72cbc2a4aacc87a60ff8287230325a3a5b5fc276afa15184
ripemd-160 227602fde7d0a9d67c202d1558b4770ac78a3fa2

18938 as geometric shapes

Circle

Radius = n
Diameter 37876
Circumference 118990.96334737
Area 1126725431.9362

Sphere

Radius = n
Volume 28450568306677
Surface area 4506901727.7449
Circumference 118990.96334737

Square

Length = n
Perimeter 75752
Area 358647844
Diagonal 26782.376444222

Cube

Length = n
Surface area 2151887064
Volume 6792072869672
Space diagonal 32801.578193739

Equilateral Triangle

Length = n
Perimeter 56814
Area 155299071.95826
Altitude 16400.78909687

Triangular Pyramid

Length = n
Surface area 155299071.95826
Volume 800453464076.37
Height 8927.4588147406