161724989 is an odd 9-digits prime number following 161724988
and preceding 161724990 . In scientific notation, it is written as 1.61724989 × 10^8.
The sum of its digits is 47. It has a total of 1 prime factors and 2 positive divisors.
There are 161724988 positive integers (up to 161724989) that are relatively prime to 161724989.
161724989 has 2 divisors, whose sum is 161724990
The reverse of 161724989 is 989427161
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 47
Digital Root 2
Name
one hundred sixty-one million seven hundred twenty-four thousand nine hundred eighty-nine
Scientific notation
1.61724989 × 10^8
Engineering notation
1.61724989 × 10^6
Prime Factorization
161724989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
161724989
Product of the distinct prime numbers
The prime factorization of 161724989 is 161724989.
Since it has a total of 1 prime factors.
1 , 5 , 7 , 26 , 842 , 326 , 5532 , 8107 , 63884 , 37345 , 582506 , 765332 , 4985764 , 2578209 , 89823463 , 91193430 , 315340810 , 431789288 , 8779908822 , 6615230325
n×2
323449978
n×3
485174967
n×4
646899956
n×5
808624945
n÷2
80862494.5
n÷3
53908329.666667
n÷3
40431247.25
n÷5
32344997.8
n2
26154972067050121
n3
4.229912569839E+24
n4
6.8408256382817E+32
n5
1.106332451102E+41
2 √n
12717.114020091
3 √n
544.82752896221
4 √n
112.77018231825
5 √n
43.828380771972
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
161724990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
80862495
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
12717.114059408
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999876333
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161724989 can be divided by 2 positive divisors.
The sum of these divisors (counting 161724989) is 161724990, the average is 80862495.
Base
System
Value
2
Binary
1001101000111011101000111101
3
Ternary
102021022110222102
4
Quaternary
21220323220331
5
Quinary
312400144424
6
Senary
24014154445
8
Octal
1150735075
10
Decimal
161724989
12
Duodecimal
461b2a25
16
Hexadecimal
9a3ba3d
20
Vigesimal
2aafc99
36
Base36
2oabst
md5
9e23f32a218c1e162a0c4051cbf5bd50
sha1
430139ebbbb5b2b9f9c15356676d1c1a1acc0da5
sha256
9b3094b76858070a192bf4290320f3a11801f791955940646e9ad4052eddc41a
sha512
b9f5b879ff67969846e80bfeb600fbd7d66b46b53a0fa68a8b1ddb2bd8c516324e951d7d124f8625286e473e9cadbdf3d7ede036fc548f067513b789313693b1
ripemd-160
ed66d7266d8820ed3e69f74ace9bf36ba0f506fd
Diameter
323449978
Circumference
1016148074.6886
Area
8.2168268100691E+16
Volume
1.7718216339644E+25
Surface area
3.2867307240276E+17
Circumference
1016148074.6886
Perimeter
646899956
Area
26154972067050121
Diagonal
228713672.81844
Surface area
156929832402300726
Volume
4.229912569839E+24
Space diagonal
280115897.80152
Perimeter
485174967
Area
1.1325435122669E+16
Altitude
140057948.90076
Surface area
1.1325435122669E+16
Volume
4.9849997699323E+23
Height
76237890.93948