199945 (number)

199945 is an odd 6-digits composite number following 199944 and preceding 199946. In scientific notation, it is written as 1.99945 × 10^5. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 159952 positive integers (up to 199945) that are relatively prime to 199945.

Interesting facts

Basic properties

Name

Name one hundred ninety-nine thousand nine hundred forty-five

Notation

Scientific notation 1.99945 × 10^5
Engineering notation 1.99945 × 10^3

Prime Factorization of 199945

Prime Factorization 5 × 39989

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 199945
Product of the distinct prime numbers

The prime factorization of 199945 is 5 × 39989. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 199945)

Multiplication

n×y
n×2 399890
n×3 599835
n×4 799780
n×5 999725

Division

n÷y
n÷2 99972.5
n÷3 66648.333333333
n÷3 49986.25
n÷5 39989

Exponentiation

ny
n2 39978003025
n3 7993401814833625
n4 1.5982407258669E+21
n5 3.1956024193346E+26

Nth Root

y√n
2√n 447.15209940243
3√n 58.474993573598
4√n 21.145971233368
5√n 11.486351696367

Divisors of 199945

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 -199944
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 199945 can be divided by 4 positive divisors. The sum of these divisors (counting 199945) is 1, the average is 0.25.

Base conversion 199945

Base System Value
2 Binary 110000110100001001
3 Ternary 101011021101
4 Quaternary 300310021
5 Quinary 22344240
6 Senary 4141401
8 Octal 606411
10 Decimal 199945
12 Duodecimal 97861
16 Hexadecimal 30d09
20 Vigesimal 14jh5
36 Base36 4aa1

Cryptographic Hash Functions

md5 755247eda8e453977e5612bc751bd90f
sha1 9794fad3fa9a382619695e0ded5c817e5bae77b3
sha256 18ba4e27d3839ee33c88d670856d415c241b737788195d0ddfe92d9b2da9f31f
sha512 0522c74ac1e2f4694f2d698840ef0942beb40bd837d0fd1bb94716d1b9d2bd31597e0f7f471e701938209214b7ca5f354986efe2f2b5c7aa8f8417ff9acbffad
ripemd-160 12ccbfad1acc3122f7486d55b6cb55f896b08247

199945 as geometric shapes

Circle

Radius = n
Diameter 399890
Circumference 1256291.486244
Area 125594600608.53

Sphere

Radius = n
Volume 3.3482683224897E+16
Surface area 502378402434.12
Circumference 1256291.486244

Square

Length = n
Perimeter 799780
Area 39978003025
Diagonal 282764.93072869

Cube

Length = n
Surface area 239868018150
Volume 7993401814833625
Space diagonal 346314.89871936

Equilateral Triangle

Length = n
Perimeter 599835
Area 17310983106.111
Altitude 173157.44935968

Triangular Pyramid

Length = n
Surface area 17310983106.111
Volume 9.4203143800295E+14
Height 94254.976909563