123128081 is an odd 9-digits composite number following 123128080
and preceding 123128082 . In scientific notation, it is written as 1.23128081 × 10^8.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 122372532 positive integers (up to 123128081) that are relatively prime to 123128081.
123128081 has 4 divisors, whose sum is 123883632
The reverse of 123128081 is 180821321
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 26
Digital Root 8
Name
one hundred twenty-three million one hundred twenty-eight thousand eighty-one
Scientific notation
1.23128081 × 10^8
Engineering notation
1.23128081 × 10^6
Prime Factorization
163 × 755387
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
123128081
Product of the distinct prime numbers
The prime factorization of 123128081 is 163 × 755387.
Since it has a total of 2 prime factors.
6 , 10 , 17 , 52 , 348 , 418 , 7319 , 3603 , 35757 , 56502 , 470258 , 714853 , 8913028 , 9799479 , 85544653 , 36817765 , 546213840 , 186829190 , 3752149862 , 7262025848
n×2
246256162
n×3
369384243
n×4
492512324
n×5
615640405
n÷2
61564040.5
n÷3
41042693.666667
n÷3
30782020.25
n÷5
24625616.2
n2
15160524330742561
n3
1.8666862677981E+24
n4
2.2984149798304E+32
n5
2.8299942580817E+40
2 √n
11096.309341398
3 √n
497.4915443459
4 √n
105.33902098177
5 √n
41.502228977634
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
-123128080
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 123128081 can be divided by 4 positive divisors.
The sum of these divisors (counting 123128081) is 1, the average is 0.25.
Base
System
Value
2
Binary
111010101101100100100010001
3
Ternary
22120200112222022
4
Quaternary
13111230210101
5
Quinary
223010044311
6
Senary
20115021225
8
Octal
725544421
10
Decimal
123128081
12
Duodecimal
3529a815
16
Hexadecimal
756c911
20
Vigesimal
1i9b041
36
Base36
21b28h
md5
dd764dded90ee2e790688d07067f8c98
sha1
a323160a4588401f5d6be0501d54a04d841ec18e
sha256
e88c3576f175eb62d2069499cbf05b3ce14ad843f9d45a4f01f4d193beafede3
sha512
51b625cbf41cc40a671cc496d22809931d207b3d0bad5e13a7865db3216e362ccb277bcc2178dccb66a6ec89285864fbfb0eff074d0b22b904eb1fbecda9bb55
ripemd-160
50cca095cef0206d6bcb567e46265a3573a65adf
Diameter
246256162
Circumference
773636549.44042
Area
4.762819186203E+16
Volume
7.8191571539621E+24
Surface area
1.9051276744812E+17
Circumference
773636549.44042
Perimeter
492512324
Area
15160524330742561
Diagonal
174129402.05917
Surface area
90963145984455366
Volume
1.8666862677981E+24
Space diagonal
213264092.13046
Perimeter
369384243
Area
6.5646996025576E+15
Altitude
106632046.06523
Surface area
6.5646996025576E+15
Volume
2.1999108638465E+23
Height
58043134.019724