199905 is an odd 6-digits composite number following 199904
and preceding 199906 . In scientific notation, it is written as 1.99905 × 10^5.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 106608 positive integers (up to 199905) that are relatively prime to 199905.
199905 has 4 divisors, whose sum is 213248
The reverse of 199905 is 509991
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 33
Digital Root 6
Name
one hundred ninety-nine thousand nine hundred five
Scientific notation
1.99905 × 10^5
Engineering notation
1.99905 × 10^3
Prime Factorization
15 × 13327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
199905
Product of the distinct prime numbers
The prime factorization of 199905 is 15 × 13327.
Since it has a total of 2 prime factors.
2 , 2 , 82 , 34 , 965 , 326 , 8528 , 2877 , 52735 , 84748 , 919191 , 722446 , 3188063 , 8159924 , 15984154 , 9207572 , 850857941 , 280582822 , 633760986 , 2221780481
n×2
399810
n×3
599715
n×4
799620
n×5
999525
n÷2
99952.5
n÷3
66635
n÷3
49976.25
n÷5
39981
n2
39962009025
n3
7988605414142625
n4
1.5969621653142E+21
n5
3.1924072165713E+26
2 √n
447.10736965521
3 √n
58.471093908296
4 √n
21.144913564619
5 √n
11.485892079134
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
-199904
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 199905 can be divided by 4 positive divisors.
The sum of these divisors (counting 199905) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000110011100001
3
Ternary
101011012220
4
Quaternary
300303201
5
Quinary
22344110
6
Senary
4141253
8
Octal
606341
10
Decimal
199905
12
Duodecimal
97829
16
Hexadecimal
30ce1
20
Vigesimal
14jf5
36
Base36
4a8x
md5
7b8a578928d524b9609c19e1183daace
sha1
33da366aea6335d09229571c1aafb03b50720d1d
sha256
4cdcd6f4dec364303f58c1e4650c28db71ad6fc23be1f94193b78352ae1c4090
sha512
19ff76809f6bc536631732a107bce7fe4cba1bfe42d5232fc7617ee608f1f2f96230a55b0b87f9f8c959632ae3d96666adf0de7432d775cb4f6c6337acf53c12
ripemd-160
5aa90ad6ffe5976fc21cf8c3ec11bfc3ce964ffb
Diameter
399810
Circumference
1256040.1588317
Area
125544353975.63
Volume
3.3462592108664E+16
Surface area
502177415902.52
Circumference
1256040.1588317
Perimeter
799620
Area
39962009025
Diagonal
282708.36218619
Surface area
239772054150
Volume
7988605414142625
Space diagonal
346245.61668706
Perimeter
599715
Area
17304057500.957
Altitude
173122.80834353
Surface area
17304057500.957
Volume
9.4146617676064E+14
Height
94236.120728731