25128891 is an odd 8-digits composite number following 25128890
and preceding 25128892 . In scientific notation, it is written as 2.5128891 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 6 positive divisors.
There are 16752588 positive integers (up to 25128891) that are relatively prime to 25128891.
25128891 has 6 divisors, whose sum is 36297300
The reverse of 25128891 is 19882152
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-five million one hundred twenty-eight thousand eight hundred ninety-one
Scientific notation
2.5128891 × 10^7
Engineering notation
2.5128891 × 10^6
Prime Factorization
3 × 3 × 2792099
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
8376297
Product of the distinct prime numbers
The prime factorization of 25128891 is 3 × 3 × 2792099.
Since it has a total of 3 prime factors.
4 , 1 , 71 , 3 , 917 , 604 , 6183 , 8957 , 1321 , 43601 , 199741 , 540290 , 5208424 , 2954026 , 18891512 , 50750546 , 739590368 , 372399498 , 5945034827 , 2759694923
n×2
50257782
n×3
75386673
n×4
100515564
n×5
125644455
n÷2
12564445.5
n÷3
8376297
n÷3
6282222.75
n÷5
5025778.2
n2
631461162889881
n3
1.5867918732993E+22
n4
3.9874320023824E+29
n5
1.0019974415778E+37
2 √n
5012.8725297977
3 √n
292.90341879988
4 √n
70.801642140544
5 √n
30.201927764493
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-25128890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 25128891 can be divided by 6 positive divisors.
The sum of these divisors (counting 25128891) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1011111110110111110111011
3
Ternary
1202021200100200
4
Quaternary
1133312332323
5
Quinary
22413111031
6
Senary
2254333243
8
Octal
137667673
10
Decimal
25128891
12
Duodecimal
84ba223
16
Hexadecimal
17f6fbb
20
Vigesimal
7h124b
36
Base36
eylkr
md5
74e591f1b292784ba82257a42d36d0e3
sha1
206ff6fcede692d0c6dfb288dff9ddb153871d40
sha256
71f9a6b012acc8eafadffc3d77cb702494e5ef0d60728c5ca3a7b85145279d43
sha512
ebc2cf500a0ada59e606099cb4ed4794e4d80a795520e2659bf7c6befe838bb814d091bff3a72c2f3bee52b89f207d28125914f2487585c6157e7f2e1679bed8
ripemd-160
1f3d2835511347f40355ede9d3aed5888ee38ae2
Diameter
50257782
Circumference
157889478.71692
Area
1.9837937503621E+15
Volume
6.6467382559108E+22
Surface area
7.9351750014485E+15
Circumference
157889478.71692
Perimeter
100515564
Area
631461162889881
Diagonal
35537618.459595
Surface area
3788766977339286
Volume
1.5867918732993E+22
Space diagonal
43524515.94986
Perimeter
75386673
Area
2.7343070428295E+14
Altitude
21762257.97493
Surface area
2.7343070428295E+14
Volume
1.8700521565694E+21
Height
11845872.819865