161005025 is an odd 9-digits composite number following 161005024
and preceding 161005026 . In scientific notation, it is written as 1.61005025 × 10^8.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 128804000 positive integers (up to 161005025) that are relatively prime to 161005025.
161005025 has 4 divisors, whose sum is 167445252
The reverse of 161005025 is 520500161
Previous prime number is 25
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 20
Digital Root 2
Name
one hundred sixty-one million five thousand twenty-five
Scientific notation
1.61005025 × 10^8
Engineering notation
1.61005025 × 10^6
Prime Factorization
25 × 6440201
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
161005025
Product of the distinct prime numbers
The prime factorization of 161005025 is 25 × 6440201.
Since it has a total of 2 prime factors.
6 , 2 , 10 , 32 , 60 , 637 , 393 , 4928 , 77319 , 52352 , 455888 , 449869 , 9628837 , 2923202 , 15156074 , 55828568 , 883680797 , 832353105 , 8014563913 , 4095053923
n×2
322010050
n×3
483015075
n×4
644020100
n×5
805025125
n÷2
80502512.5
n÷3
53668341.666667
n÷3
40251256.25
n÷5
32201005
n2
25922618075250625
n3
4.1736717712712E+24
n4
6.7198212787531E+32
n5
1.0819249929812E+41
2 √n
12688.775551644
3 √n
544.01784223667
4 √n
112.64446525082
5 √n
43.789288239405
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
-161005024
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 161005025 can be divided by 4 positive divisors.
The sum of these divisors (counting 161005025) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110001011110111100001
3
Ternary
102012221220101002
4
Quaternary
21212023313201
5
Quinary
312204130100
6
Senary
23550521345
8
Octal
1146136741
10
Decimal
161005025
12
Duodecimal
45b06255
16
Hexadecimal
998bde1
20
Vigesimal
2a65cb5
36
Base36
2nuw9t
md5
f0d7ae7421eb10e2a222b26a4462630c
sha1
913eced914584b6afdc0b027454edb36c5214d05
sha256
4e424c5dab52e66e5e199df24b2abf4c336b86303db5b3796f65170faaf7d3df
sha512
2c786e7b5b7d02a9ac408fe2fdb0231652489a3b65e073b93b072864939de0cd3dcd734dd77c9d5fb0bf185718b4322cb94080b788f09c8b5be985c753419d20
ripemd-160
c18bcfd5ecac0436d573d7054271bce3d9d37d4b
Diameter
322010050
Circumference
1011624407.4621
Area
8.1438306507021E+16
Volume
1.7482635433494E+25
Surface area
3.2575322602809E+17
Circumference
1011624407.4621
Perimeter
644020100
Area
25922618075250625
Diagonal
227695489.96522
Surface area
155535708451503750
Volume
4.1736717712712E+24
Space diagonal
278868883.5739
Perimeter
483015075
Area
1.1224822892884E+16
Altitude
139434441.78695
Surface area
1.1224822892884E+16
Volume
4.9187193531879E+23
Height
75898496.655073