161820189 is an odd 9-digits composite number following 161820188
and preceding 161820190 . In scientific notation, it is written as 1.61820189 × 10^8.
The sum of its digits is 36. It has a total of 3 prime factors and 6 positive divisors.
There are 107880120 positive integers (up to 161820189) that are relatively prime to 161820189.
161820189 has 6 divisors, whose sum is 233740286
The reverse of 161820189 is 981028161
Previous prime number is 3
Is Prime? no Number parity odd Number length 9 Sum of Digits 36 Digital Root 9
Name
one hundred sixty-one million eight hundred twenty thousand one hundred eighty-nine
Scientific notation
1.61820189 × 10^8
Engineering notation
1.61820189 × 10^6
Prime Factorization
3 × 3 × 17980021
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
53940063 Product of the distinct prime numbers
The prime factorization of 161820189 is 3 × 3 × 17980021.
Since it has a total of 3 prime factors.
10 , 2 , 100 , 60 , 843 , 550 , 3731 , 2309 , 34004 , 23182 , 949892 , 835629 , 4953671 , 7068243 , 70950934 , 83491123 , 531512771 , 759320259 , 9578065031 , 2466108843
n×2
323640378
n×3
485460567
n×4
647280756
n×5
809100945
n÷2
80910094.5
n÷3
53940063
n÷3
40455047.25
n÷5
32364037.8
n2
26185773567995721
n3
4.2373868278843E+24
n4
6.8569473735434E+32
n5
1.1095925199499E+41
2 √n12720.856457016
3 √n544.93441289123
4 √n112.78677430007
5 √n43.83353950442
6 divisors
τ Total Divisors
6 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-161820188 Sum of the proper positive divisors of n
A Arithmetic Mean
0.16666666666667 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
6 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161820189 can be divided by 6 positive divisors.
The sum of these divisors (counting 161820189) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001101001010010111000011101
3
Ternary
102021111022120100
4
Quaternary
21221102320131
5
Quinary
312411221224
6
Senary
24020211313
8
Octal
1151227035
10
Decimal
161820189
12
Duodecimal
46239b39
16
Hexadecimal
9a52e1d
20
Vigesimal
2ab7a99
36
Base36
2ocd99
md5
171b6e00aedbc362971cd45eb6e28457
sha1
00e7efa016a8f63140c5c5d98a23e8feee76c94a
sha256
dbb61b44447b423e830b72f3d42df2059e57a8d49a6333f9697899177ed78674
sha512
dc3ffd4123f53a770e956aab0bc4e9f6fad29c5a85499d5878d017ee3a1b6ba9290bea720fe204688193ccff7055e1778f34e0e7b2ef05840c21877e616b42ae
ripemd-160
056c4491a60829914747ccf0decc687a93ed0ddc
Diameter
323640378
Circumference
1016746233.9298
Area
8.2265033869781E+16
Volume
1.7749524438533E+25
Surface area
3.2906013547912E+17
Circumference
1016746233.9298
Perimeter
647280756
Area
26185773567995721
Diagonal
228848305.94958
Surface area
157114641407974326
Volume
4.2373868278843E+24
Space diagonal
280280789.0384
Perimeter
485460567
Area
1.1338772563816E+16
Altitude
140140394.5192
Surface area
1.1338772563816E+16
Volume
4.9938082675125E+23
Height
76282768.649859