21936421 is an odd 8-digits composite number following 21936420
and preceding 21936422 . In scientific notation, it is written as 2.1936421 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 20217792 positive integers (up to 21936421) that are relatively prime to 21936421.
21936421 has 8 divisors, whose sum is 23660280
The reverse of 21936421 is 12463912
Previous prime number is 1373
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million nine hundred thirty-six thousand four hundred twenty-one
Scientific notation
2.1936421 × 10^7
Engineering notation
2.1936421 × 10^6
Prime Factorization
13 × 1373 × 1229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21936421
Product of the distinct prime numbers
The prime factorization of 21936421 is 13 × 1373 × 1229.
Since it has a total of 3 prime factors.
10 , 6 , 74 , 29 , 148 , 864 , 1502 , 7412 , 37209 , 82204 , 438914 , 555912 , 3174060 , 5478019 , 42842590 , 17283778 , 784088464 , 327033556 , 9216917313 , 2767507292
n×2
43872842
n×3
65809263
n×4
87745684
n×5
109682105
n÷2
10968210.5
n÷3
7312140.3333333
n÷3
5484105.25
n÷5
4387284.2
n2
481206566289241
n3
1.0555949826085E+22
n4
2.3155975943988E+29
n5
5.079592369732E+36
2 √n
4683.6333118638
3 √n
279.93374707973
4 √n
68.437075564812
5 √n
29.392271762226
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21936420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21936421 can be divided by 8 positive divisors.
The sum of these divisors (counting 21936421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011101011100100100101
3
Ternary
1112021111010001
4
Quaternary
1103223210211
5
Quinary
21103431141
6
Senary
2102101301
8
Octal
123534445
10
Decimal
21936421
12
Duodecimal
741a831
16
Hexadecimal
14eb925
20
Vigesimal
6h2111
36
Base36
d2691
md5
585c5e68c28fdf5655e58e93da19be35
sha1
964f90900f6b2b04053ad90323a81e5008ab4aa6
sha256
93b4df0965338cb6cded8acdb7dcdaeaeba534607e021e1ca8f252f94023bd08
sha512
8901c136eebce9044c267a84dbc0062ca6c0d8e7a7f152af98daad6b8370b6ad96318c3efc22f4dd87490abf71f99445f922d23d7d276ce8af426f409ad36980
ripemd-160
7218c1f130a5f84b0d9dd9444f32b70a8bdc82a3
Diameter
43872842
Circumference
137830598.11931
Area
1.5117550135134E+15
Volume
4.4216659233722E+22
Surface area
6.0470200540538E+15
Circumference
137830598.11931
Perimeter
87745684
Area
481206566289241
Diagonal
31022784.088126
Surface area
2887239397735446
Volume
1.0555949826085E+22
Space diagonal
37994995.708221
Perimeter
65809263
Area
2.0836855543718E+14
Altitude
18997497.85411
Surface area
2.0836855543718E+14
Volume
1.244030617315E+21
Height
10340928.029375