19818 (number)

19818 is an even 5-digits composite number following 19817 and preceding 19819. In scientific notation, it is written as 1.9818 × 10^4. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 6588 positive integers (up to 19818) that are relatively prime to 19818.

Interesting facts

Basic properties

Name

Name nineteen thousand eight hundred eighteen

Notation

Scientific notation 1.9818 × 10^4
Engineering notation 1.9818 × 10^3

Prime Factorization of 19818

Prime Factorization 2 × 9 × 3 × 367

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 19818
Product of the distinct prime numbers

The prime factorization of 19818 is 2 × 9 × 3 × 367. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 8, 35, 46, 980, 448, 1167, 8738, 20241, 2555, 768969, 578081, 4791072, 3945837, 71904006, 47643808, 748635956, 297631605, 7809471016, 5419740029

Basic calculations (n = 19818)

Multiplication

n×y
n×2 39636
n×3 59454
n×4 79272
n×5 99090

Division

n÷y
n÷2 9909
n÷3 6606
n÷3 4954.5
n÷5 3963.6

Exponentiation

ny
n2 392753124
n3 7783581411432
n4 154255016411759376
n5 3.0570259152482E+21

Nth Root

y√n
2√n 140.7764184798
3√n 27.061587804628
4√n 11.864923871639
5√n 7.2345573678502

Divisors of 19818

1, 2, 3, 6, 9, 18, 27, 54, 367, 734, 1101, 2202, 3303, 6606, 9909, 19818

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 -19817
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 19818 can be divided by 16 positive divisors. The sum of these divisors (counting 19818) is 1, the average is 0.0625.

Base conversion 19818

Base System Value
2 Binary 100110101101010
3 Ternary 1000012000
4 Quaternary 10311222
5 Quinary 1113233
6 Senary 231430
8 Octal 46552
10 Decimal 19818
12 Duodecimal b576
16 Hexadecimal 4d6a
20 Vigesimal 29ai
36 Base36 fai

Cryptographic Hash Functions

md5 0c741607da88f09ca91cd2a2f130900d
sha1 85caff03c4f790bd50934578e6b010f2faac7c5a
sha256 6989ee8b8526f1b43e57ecfd866b7c64a24b657d01e4154eda718ee74104c0d0
sha512 34dd5b8920e7c9a40c99d84b9daf72b260b5e1698dcc71ccc2289094a72cd8c7287309e15aadab1af063bed9ae4038c8f5796985eb69a04616ed7259212093bd
ripemd-160 4a4f07e96e8d1aa3b36ea3faffd6d0193a70aec1

19818 as geometric shapes

Circle

Radius = n
Diameter 39636
Circumference 124520.16641769
Area 1233870329.0328

Sphere

Radius = n
Volume 32603789574364
Surface area 4935481316.1314
Circumference 124520.16641769

Square

Length = n
Perimeter 79272
Area 392753124
Diagonal 28026.88437911

Cube

Length = n
Surface area 2356518744
Volume 7783581411432
Space diagonal 34325.7829044

Equilateral Triangle

Length = n
Perimeter 59454
Area 170067091.39985
Altitude 17162.8914522

Triangular Pyramid

Length = n
Surface area 170067091.39985
Volume 917303866323.52
Height 9342.2947930367