19990 (number)

19990 is an even 5-digits composite number following 19989 and preceding 19991. In scientific notation, it is written as 1.9990 × 10^4. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 7992 positive integers (up to 19990) that are relatively prime to 19990.

Interesting facts

Basic properties

Name

Name nineteen thousand nine hundred ninety

Notation

Scientific notation 1.9990 × 10^4
Engineering notation 1.9990 × 10^3

Prime Factorization of 19990

Prime Factorization 2 × 5 × 1999

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 19990
Product of the distinct prime numbers

The prime factorization of 19990 is 2 × 5 × 1999. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 8, 9, 44, 32, 95, 5400, 2620, 96418, 65378, 574500, 512924, 4645863, 4594650, 47148953, 24530899, 908556117, 871231325, 3336528767, 8883670350

Basic calculations (n = 19990)

Multiplication

n×y
n×2 39980
n×3 59970
n×4 79960
n×5 99950

Division

n÷y
n÷2 9995
n÷3 6663.3333333333
n÷3 4997.5
n÷5 3998

Exponentiation

ny
n2 399600100
n3 7988005999000
n4 159680239920010000
n5 3.192007996001E+21

Nth Root

y√n
2√n 141.38599647773
3√n 27.139651382374
4√n 11.890584362332
5√n 7.2470717121138

Divisors of 19990

1, 2, 5, 10, 1999, 3998, 9995, 19990

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 -19989
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 19990 can be divided by 8 positive divisors. The sum of these divisors (counting 19990) is 1, the average is 0.125.

Base conversion 19990

Base System Value
2 Binary 100111000010110
3 Ternary 1000102101
4 Quaternary 10320112
5 Quinary 1114430
6 Senary 232314
8 Octal 47026
10 Decimal 19990
12 Duodecimal b69a
16 Hexadecimal 4e16
20 Vigesimal 29ja
36 Base36 ffa

Cryptographic Hash Functions

md5 482018fcb72d6725497bebbe9bb83833
sha1 b665046454bbb30e867033d36a354803dddd753b
sha256 52e4f5fe2c508054a154ec57bd651764a2aa70113e83bc9d1ae09b20e192a7b5
sha512 9cd8bb5d02e46539e9a967a45576bffd2ede12f7bf5b1869fa5fad044545418c6913a22ce7b0c33467fd0590fd672ad4764c73e2c079b9d6ae913e33a8affa3f
ripemd-160 0b58a11544c61defa5f6f2eaffa18c99bfb3afc0

19990 as geometric shapes

Circle

Radius = n
Diameter 39980
Circumference 125600.87429052
Area 1255380738.5337

Sphere

Radius = n
Volume 33460081284386
Surface area 5021522954.135
Circumference 125600.87429052

Square

Length = n
Perimeter 79960
Area 399600100
Diagonal 28270.129111838

Cube

Length = n
Surface area 2397600600
Volume 7988005999000
Space diagonal 34623.695643302

Equilateral Triangle

Length = n
Perimeter 59970
Area 173031918.9774
Altitude 17311.847821651

Triangular Pyramid

Length = n
Surface area 173031918.9774
Volume 941395535008.62
Height 9423.3763706127