21568239 is an odd 8-digits composite number following 21568238
and preceding 21568240 . In scientific notation, it is written as 2.1568239 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 11203920 positive integers (up to 21568239) that are relatively prime to 21568239.
21568239 has 8 divisors, whose sum is 23903232
The reverse of 21568239 is 93286512
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million five hundred sixty-eight thousand two hundred thirty-nine
Scientific notation
2.1568239 × 10^7
Engineering notation
2.1568239 × 10^6
Prime Factorization
63 × 11 × 31123
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21568239
Product of the distinct prime numbers
The prime factorization of 21568239 is 63 × 11 × 31123.
Since it has a total of 3 prime factors.
7 , 4 , 6 , 52 , 818 , 523 , 6310 , 4204 , 2679 , 6133 , 807914 , 496932 , 4319645 , 2443605 , 25902207 , 42129056 , 956949037 , 804786286 , 964392331 , 5613221009
n×2
43136478
n×3
64704717
n×4
86272956
n×5
107841195
n÷2
10784119.5
n÷3
7189413
n÷3
5392059.75
n÷5
4313647.8
n2
465188933561121
n3
1.0033306099201E+22
n4
2.1640074390773E+29
n5
4.6673829643798E+36
2 √n
4644.1618188862
3 √n
278.3587616658
4 √n
68.148087419136
5 √n
29.292938342479
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
-21568238
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 21568239 can be divided by 8 positive divisors.
The sum of these divisors (counting 21568239) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010010001101011101111
3
Ternary
1111120210001200
4
Quaternary
1102101223233
5
Quinary
21010140424
6
Senary
2050140543
8
Octal
122215357
10
Decimal
21568239
12
Duodecimal
7281753
16
Hexadecimal
1491aef
20
Vigesimal
6eg0bj
36
Base36
cua5r
md5
f408f4ed2f985adc3dd08f2416767b32
sha1
32afa8d5ec79fef79a5736042e8c5c58fce22aa6
sha256
ec304cd1167df1519619f888e0b3fc685d5bcf13ebbd5baf2f68eeba8a0fd6bd
sha512
8daee2e9fc5b7ba950259c3006a7e0fd9c138dc88a761cccfcf753964d4c9bd1d829be3e2b0127ca1f11eeac9c26be25e779e39c8715cec5b623d779487fa676
ripemd-160
5625a87df6b73f5fb01a2b032fe7ca81fcf740ff
Diameter
43136478
Circumference
135517242.38654
Area
1.4614341362069E+15
Volume
4.2027414309958E+22
Surface area
5.8457365448276E+15
Circumference
135517242.38654
Perimeter
86272956
Area
465188933561121
Diagonal
30502096.110304
Surface area
2791133601366726
Volume
1.0033306099201E+22
Space diagonal
37357285.777789
Perimeter
64704717
Area
2.0143271701166E+14
Altitude
18678642.888894
Surface area
2.0143271701166E+14
Volume
1.1824364634109E+21
Height
10167365.370101