25643145 is an odd 8-digits composite number following 25643144
and preceding 25643146 . In scientific notation, it is written as 2.5643145 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 12432960 positive integers (up to 25643145) that are relatively prime to 25643145.
25643145 has 16 divisors, whose sum is 44759232
The reverse of 25643145 is 54134652
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-five million six hundred forty-three thousand one hundred forty-five
Scientific notation
2.5643145 × 10^7
Engineering notation
2.5643145 × 10^6
Prime Factorization
3 × 5 × 11 × 155413
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
25643145
Product of the distinct prime numbers
The prime factorization of 25643145 is 3 × 5 × 11 × 155413.
Since it has a total of 4 prime factors.
9 , 9 , 49 , 68 , 222 , 948 , 5063 , 2722 , 24318 , 45517 , 188076 , 77103 , 1533744 , 2604823 , 54489196 , 12261955 , 640668747 , 197134110 , 6109519857 , 6942549423
n×2
51286290
n×3
76929435
n×4
102572580
n×5
128215725
n÷2
12821572.5
n÷3
8547715
n÷3
6410786.25
n÷5
5128629
n2
657570885491025
n3
1.6862185564425E+22
n4
4.3239946944545E+29
n5
1.1088082292913E+37
2 √n
5063.9061010252
3 √n
294.88799731661
4 √n
71.161127738571
5 √n
30.32454250989
1 , 3 , 5 , 11 , 15 , 33 , 55 , 165 , 155413 , 466239 , 777065 , 1709543 , 2331195 , 5128629 , 8547715 , 25643145
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-25643144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 25643145 can be divided by 16 positive divisors.
The sum of these divisors (counting 25643145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100001110100100010001001
3
Ternary
1210020210210010
4
Quaternary
1201310202021
5
Quinary
23031040040
6
Senary
2313342133
8
Octal
141644211
10
Decimal
25643145
12
Duodecimal
8707949
16
Hexadecimal
1874889
20
Vigesimal
8057h5
36
Base36
f9mdl
md5
d226e6b13ab963a2da3b55c58cd35b76
sha1
b33ddc66a1d064df67942aa7ee0f6776e8b65379
sha256
f8c1ef9602ee7000a4749cf147f225a09916d0a4dd5c00b651c71ccbc2eac3ad
sha512
c80b4999e8b2749063d6bc836cb4f97b6e491676698b2d15ae16341ac097bcfa8e7fbab29eba6a5248467ca49c7af5a9bd31723762d9fcdaff552d6bfcc8bc40
ripemd-160
265f779388eb6ba543a6e6eba53c04b1f7f813ae
Diameter
51286290
Circumference
161120631.89388
Area
2.0658198630731E+15
Volume
7.0632157723553E+22
Surface area
8.2632794522926E+15
Circumference
161120631.89388
Perimeter
102572580
Area
657570885491025
Diagonal
36264883.4409
Surface area
3945425312946150
Volume
1.6862185564425E+22
Space diagonal
44415230.005856
Perimeter
76929435
Area
2.8473654581213E+14
Altitude
22207615.002928
Surface area
2.8473654581213E+14
Volume
1.9872276263718E+21
Height
12088294.4803