160991 is an odd 6-digits composite number following 160990
and preceding 160992 . In scientific notation, it is written as 1.60991 × 10^5.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 159984 positive integers (up to 160991) that are relatively prime to 160991.
160991 has 4 divisors, whose sum is 162000
The reverse of 160991 is 199061
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 26
Digital Root 8
Name
one hundred sixty thousand nine hundred ninety-one
Scientific notation
1.60991 × 10^5
Engineering notation
1.60991 × 10^3
Prime Factorization
199 × 809
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
160991
Product of the distinct prime numbers
The prime factorization of 160991 is 199 × 809.
Since it has a total of 2 prime factors.
8 , 6 , 98 , 2 , 352 , 331 , 9367 , 5457 , 58485 , 50230 , 441822 , 135666 , 7465817 , 6726062 , 15323815 , 11474120 , 340037257 , 917247738 , 613344288 , 1536074199
n×2
321982
n×3
482973
n×4
643964
n×5
804955
n÷2
80495.5
n÷3
53663.666666667
n÷3
40247.75
n÷5
32198.2
n2
25918102081
n3
4172581172122271
n4
6.7174801548114E+20
n5
1.0814538476032E+26
2 √n
401.23683779035
3 √n
54.400204547962
4 √n
20.030897079021
5 √n
10.999180261686
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
-160990
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 160991 can be divided by 4 positive divisors.
The sum of these divisors (counting 160991) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111010011011111
3
Ternary
22011211122
4
Quaternary
213103133
5
Quinary
20122431
6
Senary
3241155
8
Octal
472337
10
Decimal
160991
12
Duodecimal
791bb
16
Hexadecimal
274df
20
Vigesimal
1029b
36
Base36
3g7z
md5
dfe5763d05f7873c4879d40dacb8130c
sha1
d6d2d924dc47498ae8859658063a08cf8a8d98bf
sha256
38a586c29fee9f104fc7bf64d9f765f9590a102fc24f763cc121cd577e3e2234
sha512
a0481563c500c36a8a0a8b00f8fadaa2cfe88b88dad46f41f5d36c721b70918b866ccdfb63add6664fe77095f6cdede967e1cdf051527fe7d04e343ef64cb100
ripemd-160
aca8e7428eb25a97a7c0c0f4b1c02271671c45dd
Diameter
321982
Circumference
1011536.2857881
Area
81424119092.66
Volume
1.7478067142462E+16
Surface area
325696476370.64
Circumference
1011536.2857881
Perimeter
643964
Area
25918102081
Diagonal
227675.65562001
Surface area
155508612486
Volume
4172581172122271
Space diagonal
278844.59156132
Perimeter
482973
Area
11222867410.012
Altitude
139422.29578066
Surface area
11222867410.012
Volume
4.917434069765E+14
Height
75891.885206669