21409906 is an even 8-digits composite number following 21409905
and preceding 21409907 . In scientific notation, it is written as 2.1409906 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 9175668 positive integers (up to 21409906) that are relatively prime to 21409906.
21409906 has 8 divisors, whose sum is 36702720
The reverse of 21409906 is 60990412
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four hundred nine thousand nine hundred six
Scientific notation
2.1409906 × 10^7
Engineering notation
2.1409906 × 10^6
Prime Factorization
2 × 7 × 1529279
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21409906
Product of the distinct prime numbers
The prime factorization of 21409906 is 2 × 7 × 1529279.
Since it has a total of 3 prime factors.
10 , 10 , 85 , 29 , 534 , 975 , 767 , 2977 , 99341 , 1386 , 62420 , 78055 , 4356266 , 8353389 , 37228061 , 23831823 , 613679196 , 53992801 , 9253939984 , 4025539590
n×2
42819812
n×3
64229718
n×4
85639624
n×5
107049530
n÷2
10704953
n÷3
7136635.3333333
n÷3
5352476.5
n÷5
4281981.2
n2
458384074928836
n3
9.8139599561233E+21
n4
2.1011596014836E+29
n5
4.4985629558762E+36
2 √n
4627.0839629296
3 √n
277.67594177569
4 √n
68.022672418316
5 √n
29.249803450577
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
-21409905
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 21409906 can be divided by 8 positive divisors.
The sum of these divisors (counting 21409906) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001101011000001110010
3
Ternary
1111021201212111
4
Quaternary
1101223001302
5
Quinary
20440104111
6
Senary
2042515534
8
Octal
121530162
10
Decimal
21409906
12
Duodecimal
7205baa
16
Hexadecimal
146b072
20
Vigesimal
6dg4f6
36
Base36
cqvzm
md5
367d8d7ca3bb71e7e2805aa17a0b50d7
sha1
c4f6db7c1af2895efaf8b36a4f369e9c73e9d36b
sha256
dc5bc418a3d4b81fd9d1c4c7aabe1614800de6ea22bcd3ea98340cad458f200a
sha512
7fcd724fd8f01f02dd1b73aaf67820a1f6e9233f5bbbf3e0672d0e96686ab1a00e729c290aaa5b34272c9c8bf482bda2a935433cd995d45753bce0f2e1e34605
ripemd-160
8b058bbecbcdfb85460789c9ae3aa443b9294c14
Diameter
42819812
Circumference
134522406.8073
Area
1.440056042319E+15
Volume
4.1108619334375E+22
Surface area
5.7602241692759E+15
Circumference
134522406.8073
Perimeter
85639624
Area
458384074928836
Diagonal
30278179.434333
Surface area
2750304449573016
Volume
9.8139599561233E+21
Space diagonal
37083044.977274
Perimeter
64229718
Area
1.984861267893E+14
Altitude
18541522.488637
Surface area
1.984861267893E+14
Volume
1.1565862725447E+21
Height
10092726.478111