19998 (number)

19998 is an even 5-digits composite number following 19997 and preceding 19999. In scientific notation, it is written as 1.9998 × 10^4. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 6000 positive integers (up to 19998) that are relatively prime to 19998.

Interesting facts

Basic properties

Name

Name nineteen thousand nine hundred ninety-eight

Notation

Scientific notation 1.9998 × 10^4
Engineering notation 1.9998 × 10^3

Prime Factorization of 19998

Prime Factorization 2 × 99 × 101

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 19998
Product of the distinct prime numbers

The prime factorization of 19998 is 2 × 99 × 101. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 8, 46, 12, 92, 7, 9820, 184, 50008, 96451, 593647, 334079, 8504976, 7324362, 49654821, 4358132, 573579010, 46034371, 1670401398, 9180558372

Basic calculations (n = 19998)

Multiplication

n×y
n×2 39996
n×3 59994
n×4 79992
n×5 99990

Division

n÷y
n÷2 9999
n÷3 6666
n÷3 4999.5
n÷5 3999.6

Exponentiation

ny
n2 399920004
n3 7997600239992
n4 159936009599360016
n5 3.198400319968E+21

Nth Root

y√n
2√n 141.41428499271
3√n 27.143271329915
4√n 11.891773837099
5√n 7.2476516750456

Divisors of 19998

1, 2, 99, 101, 198, 202, 9999, 19998

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 -19997
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 19998 can be divided by 8 positive divisors. The sum of these divisors (counting 19998) is 1, the average is 0.125.

Base conversion 19998

Base System Value
2 Binary 100111000011110
3 Ternary 1000102200
4 Quaternary 10320132
5 Quinary 1114443
6 Senary 232330
8 Octal 47036
10 Decimal 19998
12 Duodecimal b6a6
16 Hexadecimal 4e1e
20 Vigesimal 29ji
36 Base36 ffi

Cryptographic Hash Functions

md5 5f4f7141b65a730b4efb0e0d51f63e94
sha1 53a6a9268245459e3832f2e9590392dedec3e4a7
sha256 d3ca45a10e395c875505052964904a2052b4a406ab4f19e167f2e8b145da8b3d
sha512 7cf2c893a6083d782fefd45d624672c46a3029298cd211e4df39d9739dc0d21fa68586e79b1e99107d39857a0b2236dcd86c9d0155f3c38b419f0ea56437619f
ripemd-160 77e206d0fab1485bfe423ec4cb2a866d35fb0a9a

19998 as geometric shapes

Circle

Radius = n
Diameter 39996
Circumference 125651.13977298
Area 1256385746.59

Sphere

Radius = n
Volume 33500269547076
Surface area 5025542986.36
Circumference 125651.13977298

Square

Length = n
Perimeter 79992
Area 399920004
Diagonal 28281.442820337

Cube

Length = n
Surface area 2399520024
Volume 7997600239992
Space diagonal 34637.552049762

Equilateral Triangle

Length = n
Perimeter 59994
Area 173170441.47279
Altitude 17318.776024881

Triangular Pyramid

Length = n
Surface area 173170441.47279
Volume 942526227152.92
Height 9427.1476067791