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.
199945 has 4 divisors, whose sum is 239940
The reverse of 199945 is 549991
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 37
Digital Root 1
Name
one hundred ninety-nine thousand nine hundred forty-five
Scientific notation
1.99945 × 10^5
Engineering notation
1.99945 × 10^3
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.
4 , 3 , 67 , 8 , 556 , 146 , 3276 , 1174 , 69089 , 4852 , 556548 , 976901 , 4414004 , 4624641 , 94131269 , 49603249 , 808631556 , 91295007 , 4486034296 , 4990527122
n×2
399890
n×3
599835
n×4
799780
n×5
999725
n÷2
99972.5
n÷3
66648.333333333
n÷3
49986.25
n÷5
39989
n2
39978003025
n3
7993401814833625
n4
1.5982407258669E+21
n5
3.1956024193346E+26
2 √n
447.15209940243
3 √n
58.474993573598
4 √n
21.145971233368
5 √n
11.486351696367
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
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
md5
755247eda8e453977e5612bc751bd90f
sha1
9794fad3fa9a382619695e0ded5c817e5bae77b3
sha256
18ba4e27d3839ee33c88d670856d415c241b737788195d0ddfe92d9b2da9f31f
sha512
0522c74ac1e2f4694f2d698840ef0942beb40bd837d0fd1bb94716d1b9d2bd31597e0f7f471e701938209214b7ca5f354986efe2f2b5c7aa8f8417ff9acbffad
ripemd-160
12ccbfad1acc3122f7486d55b6cb55f896b08247
Diameter
399890
Circumference
1256291.486244
Area
125594600608.53
Volume
3.3482683224897E+16
Surface area
502378402434.12
Circumference
1256291.486244
Perimeter
799780
Area
39978003025
Diagonal
282764.93072869
Surface area
239868018150
Volume
7993401814833625
Space diagonal
346314.89871936
Perimeter
599835
Area
17310983106.111
Altitude
173157.44935968
Surface area
17310983106.111
Volume
9.4203143800295E+14
Height
94254.976909563