21082989 is an odd 8-digits composite number following 21082988
and preceding 21082990 . In scientific notation, it is written as 2.1082989 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13315536 positive integers (up to 21082989) that are relatively prime to 21082989.
21082989 has 8 divisors, whose sum is 29590240
The reverse of 21082989 is 98928012
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million eighty-two thousand nine hundred eighty-nine
Scientific notation
2.1082989 × 10^7
Engineering notation
2.1082989 × 10^6
Prime Factorization
3 × 19 × 369877
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21082989
Product of the distinct prime numbers
The prime factorization of 21082989 is 3 × 19 × 369877.
Since it has a total of 3 prime factors.
8 , 9 , 79 , 30 , 193 , 904 , 8771 , 8334 , 64326 , 63429 , 196202 , 480173 , 4470404 , 9914471 , 82179417 , 74159873 , 221587215 , 852550379 , 2988269837 , 9392886023
n×2
42165978
n×3
63248967
n×4
84331956
n×5
105414945
n÷2
10541494.5
n÷3
7027663
n÷3
5270747.25
n÷5
4216597.8
n2
444492425174121
n3
9.3712289105293E+21
n4
1.9757351603717E+29
n5
4.165440265303E+36
2 √n
4591.6216089743
3 √n
276.25536908683
4 √n
67.761505362369
5 √n
29.159927269524
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
-21082988
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 21082989 can be divided by 8 positive divisors.
The sum of these divisors (counting 21082989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011011001101101101
3
Ternary
1110200010102110
4
Quaternary
1100123031231
5
Quinary
20344123424
6
Senary
2031514233
8
Octal
120331555
10
Decimal
21082989
12
Duodecimal
7088979
16
Hexadecimal
141b36d
20
Vigesimal
6bf799
36
Base36
cjvql
md5
106502ccfd9b1cb4e086d4dad683e861
sha1
55bed26d47134d70a98fa60bad55e3185de42976
sha256
38143946a5fe6bce94d424b9ff41c92b0a664f0c832d3352a0479016c617c0f3
sha512
7822c9edc48a3392c3c2dabad585b103524616ad91869d5d46adc75826eb8013f0f72ca32fad57768ac184da863edcd3b79d0c068e489b78feb1e045096cb4da
ripemd-160
3f59c401f4e3bf0449074df11eadc977d8dac4b6
Diameter
42165978
Circumference
132468326.71623
Area
1.3964141375033E+15
Volume
3.9254111867236E+22
Surface area
5.5856565500133E+15
Circumference
132468326.71623
Perimeter
84331956
Area
444492425174121
Diagonal
29815848.979163
Surface area
2666954551044726
Volume
9.3712289105293E+21
Space diagonal
36516808.123416
Perimeter
63248967
Area
1.9247086599527E+14
Altitude
18258404.061708
Surface area
1.9247086599527E+14
Volume
1.1044099184478E+21
Height
9938616.3263876