21239908 is an even 8-digits composite number following 21239907
and preceding 21239909 . In scientific notation, it is written as 2.1239908 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 6 positive divisors.
There are 10619952 positive integers (up to 21239908) that are relatively prime to 21239908.
21239908 has 6 divisors, whose sum is 37169846
The reverse of 21239908 is 80993212
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million two hundred thirty-nine thousand nine hundred eight
Scientific notation
2.1239908 × 10^7
Engineering notation
2.1239908 × 10^6
Prime Factorization
2 × 2 × 5309977
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10619954
Product of the distinct prime numbers
The prime factorization of 21239908 is 2 × 2 × 5309977.
Since it has a total of 3 prime factors.
7 , 9 , 72 , 63 , 688 , 689 , 3717 , 8279 , 16517 , 91459 , 719202 , 667435 , 235083 , 9121756 , 44976602 , 91437740 , 420414215 , 418997698 , 7537113659 , 2444122920
n×2
42479816
n×3
63719724
n×4
84959632
n×5
106199540
n÷2
10619954
n÷3
7079969.3333333
n÷3
5309977
n÷5
4247981.6
n2
451133691848464
n3
9.5820381105617E+21
n4
2.0352160792082E+29
n5
4.3227802282504E+36
2 √n
4608.6774675605
3 √n
276.93905787008
4 √n
67.887240830369
5 √n
29.203205614748
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21239907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21239908 can be divided by 6 positive divisors.
The sum of these divisors (counting 21239908) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010001000001100001100100
3
Ternary
1110222002200021
4
Quaternary
1101001201210
5
Quinary
20414134113
6
Senary
2035124524
8
Octal
121014144
10
Decimal
21239908
12
Duodecimal
7143744
16
Hexadecimal
1441864
20
Vigesimal
6cejf8
36
Base36
cn8tg
md5
4171c9eaae1075917bb602923f852669
sha1
8250c7e573d1dd976c4b43f07e3dc726bcc9784c
sha256
f3d12fb4ca31fd9c4f7c978ccdf71c99e5834defcd9a88fe5735ab2dc0c94a1b
sha512
26af52a583f9d92e957ed51803d28e0a7968d8c8b966b7e3af61ebeacb3eb2d17a928e38f0152ec7a5c76a68dcc9154e981156ca51bece010da0f0d23e4e3829
ripemd-160
65bbea4da928c446ff9cab995e7ed8933ef4ecc1
Diameter
42479816
Circumference
133454277.87145
Area
1.417278292098E+15
Volume
4.0137147379411E+22
Surface area
5.6691131683919E+15
Circumference
133454277.87145
Perimeter
84959632
Area
451133691848464
Diagonal
30037765.957157
Surface area
2706802151090784
Volume
9.5820381105617E+21
Space diagonal
36788599.804089
Perimeter
63719724
Area
1.9534661882192E+14
Altitude
18394299.902044
Surface area
1.9534661882192E+14
Volume
1.1292540209277E+21
Height
10012588.652386