161946 is an even 6-digits composite number following 161945
and preceding 161947 . In scientific notation, it is written as 1.61946 × 10^5.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 53964 positive integers (up to 161946) that are relatively prime to 161946.
161946 has 16 divisors, whose sum is 360000
The reverse of 161946 is 649161
Previous prime number is 3
Is Prime? no
Number parity even
Number length 6
Sum of Digits 27
Digital Root 9
Name
one hundred sixty-one thousand nine hundred forty-six
Scientific notation
1.61946 × 10^5
Engineering notation
1.61946 × 10^3
Prime Factorization
2 × 9 × 3 × 2999
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
161946
Product of the distinct prime numbers
The prime factorization of 161946 is 2 × 9 × 3 × 2999.
Since it has a total of 4 prime factors.
2 , 6 , 16 , 45 , 948 , 138 , 1797 , 7466 , 41925 , 56343 , 633708 , 238807 , 8891909 , 1971071 , 25737133 , 77337199 , 440730006 , 248153179 , 1937481731 , 5559189760
n×2
323892
n×3
485838
n×4
647784
n×5
809730
n÷2
80973
n÷3
53982
n÷3
40486.5
n÷5
32389.2
n2
26226506916
n3
4247277889018536
n4
6.87829665015E+20
n5
1.1139126293052E+26
2 √n
402.42514831954
3 √n
54.507560043189
4 √n
20.060537089508
5 √n
11.012198854094
1 , 2 , 3 , 6 , 9 , 18 , 27 , 54 , 2999 , 5998 , 8997 , 17994 , 26991 , 53982 , 80973 , 161946
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-161945
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161946 can be divided by 16 positive divisors.
The sum of these divisors (counting 161946) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111100010011010
3
Ternary
22020011000
4
Quaternary
213202122
5
Quinary
20140241
6
Senary
3245430
8
Octal
474232
10
Decimal
161946
12
Duodecimal
79876
16
Hexadecimal
2789a
20
Vigesimal
104h6
36
Base36
3gyi
md5
75ec93e989ae36727615dbea4ceaead4
sha1
9c3ccbab746ab75738a9956781c5fafb0399993e
sha256
e6409225317aa39d19d4489ffc36a1c9db2704d66461e4c4c037dc9a3c6281aa
sha512
7565a2c94c7e82b894b74c858c0a9c5fe4fa8c215a765633b2109b3bc23e57d8c6526ba423fc55150cd49116301d04018f9b333e9b023510c3c456fd92d7a517
ripemd-160
b60d06a8e472460ac1355cc09e15ad96fbef6436
Diameter
323892
Circumference
1017536.7277565
Area
82393001456.628
Volume
1.7790956018527E+16
Surface area
329572005826.51
Circumference
1017536.7277565
Perimeter
647784
Area
26226506916
Diagonal
229026.22957207
Surface area
157359041496
Volume
4247277889018536
Space diagonal
280498.70008255
Perimeter
485838
Area
11356410620.892
Altitude
140249.35004127
Surface area
11356410620.892
Volume
5.0054649948478E+14
Height
76342.076524024