21291236 is an even 8-digits composite number following 21291235
and preceding 21291237 . In scientific notation, it is written as 2.1291236 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors.
There are 10635720 positive integers (up to 21291236) that are relatively prime to 21291236.
21291236 has 12 divisors, whose sum is 37294320
The reverse of 21291236 is 63219212
Previous prime number is 1579
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million two hundred ninety-one thousand two hundred thirty-six
Scientific notation
2.1291236 × 10^7
Engineering notation
2.1291236 × 10^6
Prime Factorization
2 × 2 × 1579 × 3371
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10645618
Product of the distinct prime numbers
The prime factorization of 21291236 is 2 × 2 × 1579 × 3371.
Since it has a total of 4 prime factors.
10 , 1 , 89 , 11 , 966 , 155 , 6388 , 9169 , 53852 , 95618 , 836226 , 885639 , 401251 , 5265356 , 54383611 , 92967975 , 247581625 , 499994341 , 4796225543 , 7168868799
n×2
42582472
n×3
63873708
n×4
85164944
n×5
106456180
n÷2
10645618
n÷3
7097078.6666667
n÷3
5322809
n÷5
4258247.2
n2
453316730407696
n3
9.6516734898586E+21
n4
2.0549605806752E+29
n5
4.3752650693854E+36
2 √n
4614.2427331037
3 √n
277.16196048268
4 √n
67.92821750277
5 √n
29.217306384939
1 , 2 , 4 , 1579 , 3158 , 3371 , 6316 , 6742 , 13484 , 5322809 , 10645618 , 21291236
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
-21291235
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 21291236 can be divided by 12 positive divisors.
The sum of these divisors (counting 21291236) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001001110000011100100
3
Ternary
1111001201002022
4
Quaternary
1101032003210
5
Quinary
20422304421
6
Senary
2040202312
8
Octal
121160344
10
Decimal
21291236
12
Duodecimal
7169398
16
Hexadecimal
144e0e4
20
Vigesimal
6d181g
36
Base36
cocf8
md5
a953491d42eef08095d93aaa6469aba6
sha1
a609d894289717a0f8410e46b6bdc26b566001f0
sha256
dcef19af6b65d1122c63d9fb0d1d537e26d17962250d9e3cf84b6e7f8a5bff55
sha512
741010f096748000a8067908e1080d51b8172a8b9cae92b136aef32b5f49cab82066b392b3e237473bcf33a1208bdc685ea2f5bee4da2547b9ed9a0d827bbd26
ripemd-160
080839d592657dc6f82778cbada3100c82c6dba7
Diameter
42582472
Circumference
133776781.20689
Area
1.4241365099982E+15
Volume
4.0428835374116E+22
Surface area
5.6965460399926E+15
Circumference
133776781.20689
Perimeter
85164944
Area
453316730407696
Diagonal
30110354.710886
Surface area
2719900382446176
Volume
9.6516734898586E+21
Space diagonal
36877502.50794
Perimeter
63873708
Area
1.9629190224678E+14
Altitude
18438751.25397
Surface area
1.9629190224678E+14
Volume
1.1374606290796E+21
Height
10036784.903629