25218081 is an odd 8-digits composite number following 25218080
and preceding 25218082 . In scientific notation, it is written as 2.5218081 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors.
There are 13462848 positive integers (up to 25218081) that are relatively prime to 25218081.
25218081 has 32 divisors, whose sum is 36495360
The reverse of 25218081 is 18081252
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-five million two hundred eighteen thousand eighty-one
Scientific notation
2.5218081 × 10^7
Engineering notation
2.5218081 × 10^6
Prime Factorization
63 × 3 × 29 × 43 × 107
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
25218081
Product of the distinct prime numbers
The prime factorization of 25218081 is 63 × 3 × 29 × 43 × 107.
Since it has a total of 5 prime factors.
4 , 9 , 50 , 47 , 602 , 861 , 3322 , 8700 , 72244 , 22191 , 258425 , 705622 , 5445957 , 2239521 , 52064439 , 12091525 , 867120477 , 992756024 , 9387655964 , 5160374808
n×2
50436162
n×3
75654243
n×4
100872324
n×5
126090405
n÷2
12609040.5
n÷3
8406027
n÷3
6304520.25
n÷5
5043616.2
n2
635951609322561
n3
1.6037479195977E+22
n4
4.0443444939996E+29
n5
1.0199060704158E+37
2 √n
5021.760746989
3 √n
293.24954376209
4 √n
70.864382781402
5 √n
30.223336538532
1 , 3 , 29 , 43 , 63 , 87 , 107 , 129 , 189 , 321 , 1247 , 1827 , 2709 , 3103 , 3741 , 4601 , 5481 , 6741 , 8127 , 9309 , 13803 , 20223 , 78561 , 133429 , 195489 , 235683 , 289863 , 400287 , 586467 , 869589 , 8406027 , 25218081
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-25218080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 25218081 can be divided by 32 positive divisors.
The sum of these divisors (counting 25218081) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1100000001100110000100001
3
Ternary
1202110012201000
4
Quaternary
1200030300201
5
Quinary
22423434311
6
Senary
2300302213
8
Octal
140146041
10
Decimal
25218081
12
Duodecimal
8541969
16
Hexadecimal
180cc21
20
Vigesimal
7hc541
36
Base36
f0ie9
md5
93ff91a1046fba66cc20998586989bea
sha1
8f9bab100443c40c7a1c2a355409e829ec0fbcc2
sha256
2dfcb4ff2a7def2071b6ba438f83eebb055b1bf2a48bb7c576361a84f40910b9
sha512
47e06733ee5fda2460b69bf275510980b49c876fdaf7837a529fb3cbc6d679f62f487e98b110e5326bf9d9ccd17802868196d1d93d08e199fdb2a05907c7a8cd
ripemd-160
3d219b78cdc70daf7767326aa630273f3c5b1ae8
Diameter
50436162
Circumference
158449876.01446
Area
1.9979009038864E+15
Volume
6.7177635765573E+22
Surface area
7.9916036155455E+15
Circumference
158449876.01446
Perimeter
100872324
Area
635951609322561
Diagonal
35663752.167223
Surface area
3815709655935366
Volume
1.6037479195977E+22
Space diagonal
43678997.561387
Perimeter
75654243
Area
2.7537512462547E+14
Altitude
21839498.780694
Surface area
2.7537512462547E+14
Volume
1.8900350487689E+21
Height
11887917.389074