19989 (number)

19989 is an odd 5-digits composite number following 19988 and preceding 19990. In scientific notation, it is written as 1.9989 × 10^4. The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors. There are 13320 positive integers (up to 19989) that are relatively prime to 19989.

Interesting facts

Basic properties

Name

Name nineteen thousand nine hundred eighty-nine

Notation

Scientific notation 1.9989 × 10^4
Engineering notation 1.9989 × 10^3

Prime Factorization of 19989

Prime Factorization 9 × 2221

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 19989
Product of the distinct prime numbers

The prime factorization of 19989 is 9 × 2221. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 2, 93, 9, 177, 15, 1959, 4025, 2943, 27305, 383159, 510697, 2972066, 8924746, 49415749, 4976289, 466366856, 256652839, 9745370857, 1556604140

Basic calculations (n = 19989)

Multiplication

n×y
n×2 39978
n×3 59967
n×4 79956
n×5 99945

Division

n÷y
n÷2 9994.5
n÷3 6663
n÷3 4997.25
n÷5 3997.8

Exponentiation

ny
n2 399560121
n3 7986807258669
n4 159648290293534641
n5 3.1912096746775E+21

Nth Root

y√n
2√n 141.38246001538
3√n 27.139198821027
4√n 11.890435652884
5√n 7.2469992036923

Divisors of 19989

1, 9, 2221, 19989

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 -19988
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 19989 can be divided by 4 positive divisors. The sum of these divisors (counting 19989) is 1, the average is 0.25.

Base conversion 19989

Base System Value
2 Binary 100111000010101
3 Ternary 1000102100
4 Quaternary 10320111
5 Quinary 1114424
6 Senary 232313
8 Octal 47025
10 Decimal 19989
12 Duodecimal b699
16 Hexadecimal 4e15
20 Vigesimal 29j9
36 Base36 ff9

Cryptographic Hash Functions

md5 c19cfde3e601c7453e5df6f61447ab9a
sha1 940d60228117efe222a931b58dfacb090fc71201
sha256 5cd9fe59e2474404c4e936f0addca050c2563e394c56ca23eaa7c848c0e95577
sha512 4fbe71a07584ce296cf0895f5518f4a04793621c4eb45971646f171301fd9c5ed8de54d89d4fdae1d711d4c7e1bc8bcdc5f1df4ba48d11e44f5f616477bcd0ea
ripemd-160 15f9da256b3f6d807c45ea8157e065a4646e230b

19989 as geometric shapes

Circle

Radius = n
Diameter 39978
Circumference 125594.59110521
Area 1255255140.801

Sphere

Radius = n
Volume 33455060012630
Surface area 5021020563.2042
Circumference 125594.59110521

Square

Length = n
Perimeter 79956
Area 399560121
Diagonal 28268.714898276

Cube

Length = n
Surface area 2397360726
Volume 7986807258669
Space diagonal 34621.963592494

Equilateral Triangle

Length = n
Perimeter 59967
Area 173014607.56259
Altitude 17310.981796247

Triangular Pyramid

Length = n
Surface area 173014607.56259
Volume 941254262105.8
Height 9422.9049660919