161609949 is an odd 9-digits composite number following 161609948
and preceding 161609950 . In scientific notation, it is written as 1.61609949 × 10^8.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 107739960 positive integers (up to 161609949) that are relatively prime to 161609949.
161609949 has 4 divisors, whose sum is 179566620
The reverse of 161609949 is 949906161
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 45
Digital Root 9
Name
one hundred sixty-one million six hundred nine thousand nine hundred forty-nine
Scientific notation
1.61609949 × 10^8
Engineering notation
1.61609949 × 10^6
Prime Factorization
9 × 17956661
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
161609949
Product of the distinct prime numbers
The prime factorization of 161609949 is 9 × 17956661.
Since it has a total of 2 prime factors.
10 , 6 , 73 , 92 , 649 , 969 , 191 , 6855 , 52857 , 84190 , 49672 , 808012 , 8934262 , 7678720 , 22379344 , 86103530 , 599804468 , 299285257 , 396094197 , 1010487521
n×2
323219898
n×3
484829847
n×4
646439796
n×5
808049745
n÷2
80804974.5
n÷3
53869983
n÷3
40402487.25
n÷5
32321989.8
n2
26117775615782601
n3
4.2208923852601E+24
n4
6.8213820311637E+32
n5
1.1024032021659E+41
2 √n
12712.590176671
3 √n
544.6983140801
4 √n
112.75012273462
5 √n
43.822143699785
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
-161609948
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 161609949 can be divided by 4 positive divisors.
The sum of these divisors (counting 161609949) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000011111100011011101
3
Ternary
102021002122011200
4
Quaternary
21220133203131
5
Quinary
312333004244
6
Senary
24011510113
8
Octal
1150374335
10
Decimal
161609949
12
Duodecimal
46158339
16
Hexadecimal
9a1f8dd
20
Vigesimal
2aa14h9
36
Base36
2o7v19
md5
bbb182fc540da8df144a9727284e5003
sha1
0d931cbff167ae0b776d4ec9b9bdd749dbf10061
sha256
400f7f4be7225bb5ed71dfed3999323e69b09a884b6e913e17189f849dfde018
sha512
fd9c206316ca990441f54af4c4ca55826989a7b9fba0911cded02cb1cac6e7155b47a2665b169d0f563c6421a65f343f4396e6653c21265fe3eb341c9501a872
ripemd-160
95cc6b9c58ec2ca24f8b1446131ffd13f36f3d3a
Diameter
323219898
Circumference
1015425257.0508
Area
8.2051412002649E+16
Volume
1.7680432678835E+25
Surface area
3.282056480106E+17
Circumference
1015425257.0508
Perimeter
646439796
Area
26117775615782601
Diagonal
228550981.69022
Surface area
156706653694695606
Volume
4.2208923852601E+24
Space diagonal
279916642.67662
Perimeter
484829847
Area
1.1309328586805E+16
Altitude
139958321.33831
Surface area
1.1309328586805E+16
Volume
4.9743693804601E+23
Height
76183660.563408