21568989 is an odd 8-digits composite number following 21568988
and preceding 21568990 . In scientific notation, it is written as 2.1568989 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 13273200 positive integers (up to 21568989) that are relatively prime to 21568989.
21568989 has 8 divisors, whose sum is 30970912
The reverse of 21568989 is 98986512
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
twenty-one million five hundred sixty-eight thousand nine hundred eighty-nine
Scientific notation
2.1568989 × 10^7
Engineering notation
2.1568989 × 10^6
Prime Factorization
3 × 13 × 553051
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21568989
Product of the distinct prime numbers
The prime factorization of 21568989 is 3 × 13 × 553051.
Since it has a total of 3 prime factors.
8 , 2 , 13 , 13 , 760 , 243 , 749 , 1160 , 50591 , 78955 , 101672 , 99845 , 9769922 , 4994402 , 83858152 , 69070758 , 399372717 , 899847009 , 2684421806 , 3562287681
n×2
43137978
n×3
64706967
n×4
86275956
n×5
107844945
n÷2
10784494.5
n÷3
7189663
n÷3
5392247.25
n÷5
4313797.8
n2
465221286482121
n3
1.0034352810699E+22
n4
2.1643084539608E+29
n5
4.6681945236087E+36
2 √n
4644.2425647246
3 √n
278.36198811762
4 √n
68.148679845795
5 √n
29.293142062386
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
-21568988
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 21568989 can be divided by 8 positive divisors.
The sum of these divisors (counting 21568989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010010001110111011101
3
Ternary
1111120211002110
4
Quaternary
1102101313131
5
Quinary
21010201424
6
Senary
2050144233
8
Octal
122216735
10
Decimal
21568989
12
Duodecimal
7282079
16
Hexadecimal
1491ddd
20
Vigesimal
6eg299
36
Base36
cuaql
md5
cacbd5dc561c24e796f07e9640d661f5
sha1
f8bf0452013f16768b04472293a45d4970ad3a92
sha256
3ca5c6bcd73c0a10123f99504d19dc5362411fc49683117b0132605df1d464a5
sha512
4a323a558e1b48d86e575d79926e602054972a93918350c5173f1f0aeef9ab2315ac17cc71b804d6386aa001cfe7be39fb763fbc5abbb7616324b1e9ce8beea4
ripemd-160
f006dbc302fa0c428150a5b3a80a9bd04cd11ab4
Diameter
43137978
Circumference
135521954.77552
Area
1.4615357759058E+15
Volume
4.2031798764826E+22
Surface area
5.8461431036233E+15
Circumference
135521954.77552
Perimeter
86275956
Area
465221286482121
Diagonal
30503156.770476
Surface area
2791327718892726
Volume
1.0034352810699E+22
Space diagonal
37358584.815894
Perimeter
64706967
Area
2.014467262374E+14
Altitude
18679292.407947
Surface area
2.014467262374E+14
Volume
1.1825598195439E+21
Height
10167718.923492