21356906 is an even 8-digits composite number following 21356905
and preceding 21356907 . In scientific notation, it is written as 2.1356906 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 10678452 positive integers (up to 21356906) that are relatively prime to 21356906.
21356906 has 4 divisors, whose sum is 32035362
The reverse of 21356906 is 60965312
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million three hundred fifty-six thousand nine hundred six
Scientific notation
2.1356906 × 10^7
Engineering notation
2.1356906 × 10^6
Prime Factorization
2 × 10678453
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21356906
Product of the distinct prime numbers
The prime factorization of 21356906 is 2 × 10678453.
Since it has a total of 2 prime factors.
8 , 4 , 26 , 83 , 725 , 813 , 6746 , 5003 , 99145 , 64868 , 227941 , 229589 , 5195558 , 4007062 , 28826885 , 19000191 , 888753102 , 720919577 , 9766866910 , 258951073
n×2
42713812
n×3
64070718
n×4
85427624
n×5
106784530
n÷2
10678453
n÷3
7118968.6666667
n÷3
5339226.5
n÷5
4271381.2
n2
456117433892836
n3
9.7412571606105E+21
n4
2.0804311350099E+29
n5
4.4431572189879E+36
2 √n
4621.353265008
3 √n
277.44662447704
4 √n
67.980535927631
5 √n
29.235307572757
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
-21356905
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 21356906 can be divided by 4 positive divisors.
The sum of these divisors (counting 21356906) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001011110000101101010
3
Ternary
1111012001011112
4
Quaternary
1101132011222
5
Quinary
20431410111
6
Senary
2041430322
8
Octal
121360552
10
Decimal
21356906
12
Duodecimal
719b3a2
16
Hexadecimal
145e16a
20
Vigesimal
6d9c56
36
Base36
cpr3e
md5
235584dd9e228984e5c4ccad2bc8d97f
sha1
06170a55255303cc4f9a6924750655b704fa4e8f
sha256
eed1cd85e5ae88b8a0858ad47e54416497e7aa711aff630e4434b1237f4cdcb5
sha512
6cb3a33af282634ad8991a582fc9bc98dd61acb585400789cb4f692e7d50a4518b308c5525bdf45cdc7f58cad7caf98c7c1cb38d2f53ad50cdda621a8fd7647d
ripemd-160
926da01c8831fbe9fc7618365c4b1805f45593b0
Diameter
42713812
Circumference
134189397.98602
Area
1.432935179492E+15
Volume
4.0804082576671E+22
Surface area
5.7317407179678E+15
Circumference
134189397.98602
Perimeter
85427624
Area
456117433892836
Diagonal
30203226.115527
Surface area
2736704603357016
Volume
9.7412571606105E+21
Space diagonal
36991246.284473
Perimeter
64070718
Area
1.9750464243008E+14
Altitude
18495623.142236
Surface area
1.9750464243008E+14
Volume
1.148018165925E+21
Height
10067742.038509