25218985 is an odd 8-digits composite number following 25218984
and preceding 25218986 . In scientific notation, it is written as 2.5218985 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 17375040 positive integers (up to 25218985) that are relatively prime to 25218985.
25218985 has 16 divisors, whose sum is 34752960
The reverse of 25218985 is 58981252
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-five million two hundred eighteen thousand nine hundred eighty-five
Scientific notation
2.5218985 × 10^7
Engineering notation
2.5218985 × 10^6
Prime Factorization
5 × 19 × 11 × 24133
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
25218985
Product of the distinct prime numbers
The prime factorization of 25218985 is 5 × 19 × 11 × 24133.
Since it has a total of 4 prime factors.
3 , 5 , 91 , 80 , 595 , 266 , 5579 , 2948 , 59943 , 63198 , 974993 , 983724 , 4197199 , 5425520 , 88273776 , 79563813 , 232117068 , 701190199 , 3259897613 , 8377159320
n×2
50437970
n×3
75656955
n×4
100875940
n×5
126094925
n÷2
12609492.5
n÷3
8406328.3333333
n÷3
6304746.25
n÷5
5043797
n2
635997204430225
n3
1.6039203958568E+22
n4
4.0449244404306E+29
n5
1.0200888878935E+37
2 √n
5021.850754453
3 √n
293.25304778789
4 √n
70.865017846981
5 √n
30.2235532204
1 , 5 , 11 , 19 , 55 , 95 , 209 , 1045 , 24133 , 120665 , 265463 , 458527 , 1327315 , 2292635 , 5043797 , 25218985
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
-25218984
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 25218985 can be divided by 16 positive divisors.
The sum of these divisors (counting 25218985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100000001100111110101001
3
Ternary
1202110020221111
4
Quaternary
1200030332221
5
Quinary
22424001420
6
Senary
2300310321
8
Octal
140147651
10
Decimal
25218985
12
Duodecimal
85423a1
16
Hexadecimal
180cfa9
20
Vigesimal
7hc795
36
Base36
f0j3d
md5
e047a99cc513a1bbc5c658f55a8abb81
sha1
f792886a336db144f1bcca3df920e3df476b24dd
sha256
19d7b50499fa983ded2bf07dbbd686c7b68077f892ee3c8eed6eb7db2e792c99
sha512
c9528a61d6ac0ada4b9f426288c894e7cb4f1f7678cd270d6e5ed489a38b13177e1e58bca3d2d6976d957ce510ec6155d7a57e91b5ec9ef77591fa58a90d536a
ripemd-160
71de665190224c51c3fd97e111ed30690de3717a
Diameter
50437970
Circumference
158455556.01398
Area
1.9980441451416E+15
Volume
6.718486043422E+22
Surface area
7.9921765805666E+15
Circumference
158455556.01398
Perimeter
100875940
Area
635997204430225
Diagonal
35665030.616284
Surface area
3815983226581350
Volume
1.6039203958568E+22
Space diagonal
43680563.335317
Perimeter
75656955
Area
2.7539486788623E+14
Altitude
21840281.667659
Surface area
2.7539486788623E+14
Volume
1.8902383139896E+21
Height
11888343.538761