161809066 is an even 9-digits composite number following 161809065
and preceding 161809067 . In scientific notation, it is written as 1.61809066 × 10^8.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 78146640 positive integers (up to 161809066) that are relatively prime to 161809066.
161809066 has 16 divisors, whose sum is 251082720
The reverse of 161809066 is 660908161
Previous prime number is 139
Is Prime? no
Number parity even
Number length 9
Sum of Digits 37
Digital Root 1
Name
one hundred sixty-one million eight hundred nine thousand sixty-six
Scientific notation
1.61809066 × 10^8
Engineering notation
1.61809066 × 10^6
Prime Factorization
2 × 37 × 139 × 15731
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
161809066
Product of the distinct prime numbers
The prime factorization of 161809066 is 2 × 37 × 139 × 15731.
Since it has a total of 4 prime factors.
10 , 10 , 43 , 30 , 839 , 855 , 4049 , 793 , 65925 , 20899 , 687666 , 819034 , 6516181 , 4593630 , 63066762 , 50317143 , 682586857 , 38484939 , 5414371725 , 9425791579
n×2
323618132
n×3
485427198
n×4
647236264
n×5
809045330
n÷2
80904533
n÷3
53936355.333333
n÷3
40452266.5
n÷5
32361813.2
n2
26182173839792356
n3
4.2365130948664E+24
n4
6.8550622697711E+32
n5
1.1092112232435E+41
2 √n
12720.419254097
3 √n
544.92192692477
4 √n
112.78483609997
5 √n
43.83293689251
1 , 2 , 37 , 74 , 139 , 278 , 5143 , 10286 , 15731 , 31462 , 582047 , 1164094 , 2186609 , 4373218 , 80904533 , 161809066
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
-161809065
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 161809066 can be divided by 16 positive divisors.
The sum of these divisors (counting 161809066) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101001010000001010101010
3
Ternary
102021110202022101
4
Quaternary
21221100022222
5
Quinary
312410342231
6
Senary
24020044014
8
Octal
1151201252
10
Decimal
161809066
12
Duodecimal
4623360a
16
Hexadecimal
9a502aa
20
Vigesimal
2ab62d6
36
Base36
2oc4oa
md5
d8973d6973b14b61e54965b99305fb9e
sha1
477c1ed34b0eaf06fc1d9b17455bf4efd9c3c5aa
sha256
acad8fc6cc45560ebf22837bf9038c31178f96d85d97a17b9be995370a3c84b8
sha512
d0a234b0f99db69eea3703817eb7061557056f3c12a8bef6a95ea6e4e91f729a8279cdb3cd895f9134dcc5aad59fa1de2c2a432c9b3a23fe9980f702415e149a
ripemd-160
9f4ac944be41714847cf1b758317003f2730ab47
Diameter
323618132
Circumference
1016676346.0597
Area
8.2253724990103E+16
Volume
1.7745864554226E+25
Surface area
3.2901489996041E+17
Circumference
1016676346.0597
Perimeter
647236264
Area
26182173839792356
Diagonal
228832575.65212
Surface area
157093043038754136
Volume
4.2365130948664E+24
Space diagonal
280261523.43727
Perimeter
485427198
Area
1.133721383578E+16
Altitude
140130761.71863
Surface area
1.133721383578E+16
Volume
4.9927785632761E+23
Height
76277525.217374