18947 (number)

18947 is an odd 5-digits prime number following 18946 and preceding 18948. In scientific notation, it is written as 1.8947 × 10^4. The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors. There are 18946 positive integers (up to 18947) that are relatively prime to 18947.

Interesting facts

Basic properties

Name

Name eighteen thousand nine hundred forty-seven

Notation

Scientific notation 1.8947 × 10^4
Engineering notation 1.8947 × 10^3

Prime Factorization of 18947

Prime Factorization 18947

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 18947
Product of the distinct prime numbers

The prime factorization of 18947 is 18947. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 10, 28, 17, 492, 173, 6690, 9031, 76290, 16512, 224935, 734560, 1481131, 280638, 90473338, 93187901, 221958231, 151303704, 3604825946, 928797799

Basic calculations (n = 18947)

Multiplication

n×y
n×2 37894
n×3 56841
n×4 75788
n×5 94735

Division

n÷y
n÷2 9473.5
n÷3 6315.6666666667
n÷3 4736.75
n÷5 3789.4

Exponentiation

ny
n2 358988809
n3 6801760964123
n4 128872964987238481
n5 2.4417560676132E+21

Nth Root

y√n
2√n 137.64810205738
3√n 26.659181927175
4√n 11.732352792913
5√n 7.1698173301931

Divisors of 18947

1, 18947

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 18948
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 9474
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 137.65173446056
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9998944479628
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18947 can be divided by 2 positive divisors. The sum of these divisors (counting 18947) is 18948, the average is 9474.

Base conversion 18947

Base System Value
2 Binary 100101000000011
3 Ternary 221222202
4 Quaternary 10220003
5 Quinary 1101242
6 Senary 223415
8 Octal 45003
10 Decimal 18947
12 Duodecimal ab6b
16 Hexadecimal 4a03
20 Vigesimal 2777
36 Base36 emb

Cryptographic Hash Functions

md5 523b9a212405e48323373c0fc36c4044
sha1 9fafe6add472e9a8138a592d9619f4cb62944c45
sha256 a34b2f38e9fe38074018eede440ce45ea36ff069efa5937254f1f5f357629da5
sha512 444c684646c6a3ec9fd9d831da3a5d1f9d630e066c20fe4fdb4867d24915bd5ab3fce2abd110a4a7e725ce42b5519a9553a01fff63117619ee6bb67d430a492a
ripemd-160 6f9601d39f8ae0e8e02a3656c644fe1d886f8f15

18947 as geometric shapes

Circle

Radius = n
Diameter 37894
Circumference 119047.51201513
Area 1127796605.0753

Sphere

Radius = n
Volume 28491149701817
Surface area 4511186420.3014
Circumference 119047.51201513

Square

Length = n
Perimeter 75788
Area 358988809
Diagonal 26795.104366283

Cube

Length = n
Surface area 2153932854
Volume 6801760964123
Space diagonal 32817.166651008

Equilateral Triangle

Length = n
Perimeter 56841
Area 155446714.13416
Altitude 16408.583325504

Triangular Pyramid

Length = n
Surface area 155446714.13416
Volume 801595216956.89
Height 8931.7014554277