21131225 is an odd 8-digits composite number following 21131224
and preceding 21131226 . In scientific notation, it is written as 2.1131225 × 10^7.
The sum of its digits is 17. It has a total of 4 prime factors and 12 positive divisors.
There are 16837200 positive integers (up to 21131225) that are relatively prime to 21131225.
21131225 has 12 divisors, whose sum is 26307840
The reverse of 21131225 is 52213112
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million one hundred thirty-one thousand two hundred twenty-five
Scientific notation
2.1131225 × 10^7
Engineering notation
2.1131225 × 10^6
Prime Factorization
5 × 5 × 271 × 3119
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
4226245
Product of the distinct prime numbers
The prime factorization of 21131225 is 5 × 5 × 271 × 3119.
Since it has a total of 4 prime factors.
6 , 4 , 88 , 92 , 434 , 487 , 7053 , 9905 , 85520 , 83541 , 543847 , 355542 , 3296955 , 7245359 , 87083620 , 17928034 , 892492912 , 591333802 , 6800192637 , 6928967256
n×2
42262450
n×3
63393675
n×4
84524900
n×5
105656125
n÷2
10565612.5
n÷3
7043741.6666667
n÷3
5282806.25
n÷5
4226245
n2
446528670000625
n3
9.435697794734E+21
n4
1.9938785313253E+29
n5
4.2133095868104E+36
2 √n
4596.8712185572
3 √n
276.46589117168
4 √n
67.800230224958
5 √n
29.173258138159
1 , 5 , 25 , 271 , 1355 , 3119 , 6775 , 15595 , 77975 , 845249 , 4226245 , 21131225
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131224
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131225 can be divided by 12 positive divisors.
The sum of these divisors (counting 21131225) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000100110111111011001
3
Ternary
1110202120120222
4
Quaternary
1100212333121
5
Quinary
20402144400
6
Senary
2032525425
8
Octal
120467731
10
Decimal
21131225
12
Duodecimal
70b0875
16
Hexadecimal
1426fd9
20
Vigesimal
6c1815
36
Base36
ckwyh
md5
a1daadf8160054550f5e2f4e0cba629f
sha1
04e6fca2d847d7beaa91e1f372d6358e4db39adb
sha256
b2e931d103a0622ba1cf4c8f5d13507a86ada178f8f99fc091548068418b5d14
sha512
63e2082f57256639a212d4e85cb71dde3c6570bc7c0252fbc4c017b19fe19f8a7dcbf175d3ceaeb4c3bd785691a356f7dcda75380ea3bb56ef32f4a3ee3467fa
ripemd-160
b9b4320a0bc7e30651720d4b306902205e2f4ad2
Diameter
42262450
Circumference
132771402.44271
Area
1.4028111892912E+15
Volume
3.9524158497906E+22
Surface area
5.6112447571647E+15
Circumference
132771402.44271
Perimeter
84524900
Area
446528670000625
Diagonal
29884064.984557
Surface area
2679172020003750
Volume
9.435697794734E+21
Space diagonal
36600355.32617
Perimeter
63393675
Area
1.9335258586931E+14
Altitude
18300177.663085
Surface area
1.9335258586931E+14
Volume
1.1120076493139E+21
Height
9961354.9948525