261728138 is an even 9-digits composite number following 261728137
and preceding 261728139 . In scientific notation, it is written as 2.61728138 × 10^8.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 112169196 positive integers (up to 261728138) that are relatively prime to 261728138.
261728138 has 8 divisors, whose sum is 448676832
The reverse of 261728138 is 831827162
Previous prime number is 7
Is Prime? no Number parity even Number length 9 Sum of Digits 38 Digital Root 2
Name
two hundred sixty-one million seven hundred twenty-eight thousand one hundred thirty-eight
Scientific notation
2.61728138 × 10^8
Engineering notation
2.61728138 × 10^6
Prime Factorization
2 × 7 × 18694867
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
261728138 Product of the distinct prime numbers
The prime factorization of 261728138 is 2 × 7 × 18694867.
Since it has a total of 3 prime factors.
9 , 4 , 79 , 79 , 221 , 855 , 2152 , 8876 , 38205 , 98696 , 495781 , 925387 , 6848971 , 1911153 , 46639221 , 27976230 , 700221036 , 411479757 , 8213160488 , 7557320508
n×2
523456276
n×3
785184414
n×4
1046912552
n×5
1308640690
n÷2
130864069
n÷3
87242712.666667
n÷3
65432034.5
n÷5
52345627.6
n2
68501618220947044
n3
1.7928800986955E+25
n4
4.6924716988884E+33
n5
1.2281518803678E+42
2 √n16178.014031395
3 √n639.66139152008
4 √n127.19282224793
5 √n48.258084895854
8 divisors
τ Total Divisors
8 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-261728137 Sum of the proper positive divisors of n
A Arithmetic Mean
0.125 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
8 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 261728138 can be divided by 8 positive divisors.
The sum of these divisors (counting 261728138) is 1, the average is 0.125.
Base
System
Value
2
Binary
1111100110011010011110001010
3
Ternary
200020111011111202
4
Quaternary
33212122132022
5
Quinary
1014000300023
6
Senary
41545424202
8
Octal
1746323612
10
Decimal
261728138
12
Duodecimal
7379b062
16
Hexadecimal
f99a78a
20
Vigesimal
41fg06i
36
Base36
4btqq2
md5
8f2840f9a8444d7de27d8bce9c150d46
sha1
faa53933f96064e3e0c42f1ab9107d05f0d2e299
sha256
e10f358a9baacd7e5f58ec5c3bb040c4d2539db9c207654a474cdbdc21c7b566
sha512
70be95518210ee740ad2ef695a84d4ad1d5ad5e5d318b7a98508df005c8290ed73cc6cfa4354e32e15b42e33888983a2dbb3164a1667ef187b39b6cf7f3027b2
ripemd-160
418fdc1c90702ac7f7a5f36600712f49033e7670
Diameter
523456276
Circumference
1644486391.1571
Area
2.1520418056194E+17
Volume
7.5099985957723E+25
Surface area
8.6081672224776E+17
Circumference
1644486391.1571
Perimeter
1046912552
Area
68501618220947044
Diagonal
370139482.41426
Surface area
411009709325682264
Volume
1.7928800986955E+25
Space diagonal
453326432.7864
Perimeter
785184414
Area
2.9662070789842E+16
Altitude
226663216.3932
Surface area
2.9662070789842E+16
Volume
2.1129294594034E+24
Height
123379827.47142