199991 is an odd 6-digits composite number following 199990
and preceding 199992 . In scientific notation, it is written as 1.99991 × 10^5.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 181800 positive integers (up to 199991) that are relatively prime to 199991.
199991 has 4 divisors, whose sum is 218184
The reverse of 199991 is 199991
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 38
Digital Root 2
Name
one hundred ninety-nine thousand nine hundred ninety-one
Scientific notation
1.99991 × 10^5
Engineering notation
1.99991 × 10^3
Prime Factorization
11 × 18181
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
199991
Product of the distinct prime numbers
The prime factorization of 199991 is 11 × 18181.
Since it has a total of 2 prime factors.
2 , 2 , 2 , 37 , 921 , 843 , 9814 , 3869 , 28964 , 96861 , 925611 , 343566 , 6462437 , 4121069 , 31081844 , 15986375 , 266350067 , 644686776 , 3753273283 , 6150433485
n×2
399982
n×3
599973
n×4
799964
n×5
999955
n÷2
99995.5
n÷3
66663.666666667
n÷3
49997.75
n÷5
39998.2
n2
39996400081
n3
7998920048599271
n4
1.5997120194394E+21
n5
3.1992800647971E+26
2 √n
447.20353308086
3 √n
58.479477545777
4 √n
21.147187356262
5 √n
11.486880165257
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
-199990
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 199991 can be divided by 4 positive divisors.
The sum of these divisors (counting 199991) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000110100110111
3
Ternary
101011100002
4
Quaternary
300310313
5
Quinary
22344431
6
Senary
4141515
8
Octal
606467
10
Decimal
199991
12
Duodecimal
9789b
16
Hexadecimal
30d37
20
Vigesimal
14jjb
36
Base36
4abb
md5
a3e228016ff7a45ccdca3c0cc1bb226b
sha1
4c97028811100e7639f7f2fc3629856267d7aa09
sha256
7d0d6be7d304db051475d0802db31c15f8d621009f7ae719f43bf481792a0bf0
sha512
475659c2b2a8a94cf07cd1fd224ee5255369df0231fb7278fe3cc6198f4a7c672c213eecc56be33d9ef269fe32df0b9228eaed25f8f1cb32ca6fa34015854744
ripemd-160
2e2655dc59ea6b1eb62d597a692e1238c89318d5
Diameter
399982
Circumference
1256580.5127682
Area
125652396664.51
Volume
3.3505797948442E+16
Surface area
502609586658.03
Circumference
1256580.5127682
Perimeter
799964
Area
39996400081
Diagonal
282829.98455256
Surface area
239978400486
Volume
7998920048599271
Space diagonal
346394.57305651
Perimeter
599973
Area
17318949265.036
Altitude
173197.28652825
Surface area
17318949265.036
Volume
9.4268176808893E+14
Height
94276.661517519