21131025 is an odd 8-digits composite number following 21131024
and preceding 21131026 . In scientific notation, it is written as 2.1131025 × 10^7.
The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors.
There are 11269840 positive integers (up to 21131025) that are relatively prime to 21131025.
21131025 has 4 divisors, whose sum is 21412848
The reverse of 21131025 is 52013112
Previous prime number is 75
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty-one million one hundred thirty-one thousand twenty-five
Scientific notation
2.1131025 × 10^7
Engineering notation
2.1131025 × 10^6
Prime Factorization
75 × 281747
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21131025
Product of the distinct prime numbers
The prime factorization of 21131025 is 75 × 281747.
Since it has a total of 2 prime factors.
2 , 3 , 86 , 6 , 798 , 379 , 7147 , 1690 , 65625 , 48729 , 324051 , 52921 , 6747251 , 3139065 , 23461096 , 53801221 , 125589600 , 364816618 , 7644167868 , 2794152835
n×2
42262050
n×3
63393075
n×4
84524100
n×5
105655125
n÷2
10565512.5
n÷3
7043675
n÷3
5282756.25
n÷5
4226205
n2
446520217550625
n3
9.4354298800677E+21
n4
1.9938030468146E+29
n5
4.2131102027315E+36
2 √n
4596.849464579
3 √n
276.46501894976
4 √n
67.800069797744
5 √n
29.173202914918
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
-21131024
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 21131025 can be divided by 4 positive divisors.
The sum of these divisors (counting 21131025) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100110111100010001
3
Ternary
1110202120022120
4
Quaternary
1100212330101
5
Quinary
20402143100
6
Senary
2032524453
8
Octal
120467421
10
Decimal
21131025
12
Duodecimal
70b0729
16
Hexadecimal
1426f11
20
Vigesimal
6c17b5
36
Base36
ckwsx
md5
c555b72b567fe6b06c8a8f17c3151d29
sha1
856276eeb20625b51e2e4155741ce779e6885f58
sha256
fe24eab4f24896e6e84ded1a929b0330aeb6e35553697a08a1ef817795e2ec17
sha512
245c05d88197ffd8e7bb87dbff006a5eaf589682a826551dcbbdaeb95ecf7a1f524373495010b86c186c9f88c2b632d9c6e8e459ed0c1a5096b75b06ede0def0
ripemd-160
118b6350513147ae823d32d24742fa528ae092cb
Diameter
42262050
Circumference
132770145.80564
Area
1.4027846351364E+15
Volume
3.9523036259576E+22
Surface area
5.6111385405454E+15
Circumference
132770145.80564
Perimeter
84524100
Area
446520217550625
Diagonal
29883782.141845
Surface area
2679121305303750
Volume
9.4354298800677E+21
Space diagonal
36600008.916008
Perimeter
63393075
Area
1.933489258511E+14
Altitude
18300004.458004
Surface area
1.933489258511E+14
Volume
1.1119760752677E+21
Height
9961260.7139483