21087089 is an odd 8-digits composite number following 21087088
and preceding 21087090 . In scientific notation, it is written as 2.1087089 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 19161856 positive integers (up to 21087089) that are relatively prime to 21087089.
21087089 has 8 divisors, whose sum is 23097960
The reverse of 21087089 is 98078012
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million eighty-seven thousand eighty-nine
Scientific notation
2.1087089 × 10^7
Engineering notation
2.1087089 × 10^6
Prime Factorization
17 × 29 × 42773
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21087089
Product of the distinct prime numbers
The prime factorization of 21087089 is 17 × 29 × 42773.
Since it has a total of 3 prime factors.
5 , 9 , 42 , 61 , 700 , 329 , 4437 , 3286 , 84691 , 45685 , 979260 , 716443 , 2971523 , 8443919 , 97188364 , 57907043 , 528597610 , 4510596 , 9348570144 , 1623123245
n×2
42174178
n×3
63261267
n×4
84348356
n×5
105435445
n÷2
10543544.5
n÷3
7029029.6666667
n÷3
5271772.25
n÷5
4217417.8
n2
444665322493921
n3
9.376697230643E+21
n4
1.9772724902862E+29
n5
4.1694920979917E+36
2 √n
4592.0680526316
3 √n
276.27327568125
4 √n
67.764799510008
5 √n
29.161061325069
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
-21087088
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 21087089 can be divided by 8 positive divisors.
The sum of these divisors (counting 21087089) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011100001101110001
3
Ternary
1110200100001022
4
Quaternary
1100130031301
5
Quinary
20344241324
6
Senary
2031545225
8
Octal
120341561
10
Decimal
21087089
12
Duodecimal
708b215
16
Hexadecimal
141c371
20
Vigesimal
6bfhe9
36
Base36
cjywh
md5
5eb75d1a8a1299a3b40ebb527e258525
sha1
b95f9b567a37b6f29e9997add95deb8907397123
sha256
f3b1db0c5810b93ade1fd5da34489fbc551e82cefedd87b7716c455867ac6360
sha512
f5bd4153906bd2933a1d946e40be706ca81a6e0b490c5b746f0f42fa7005d0d15a02c45ed17d7349a53b06f8096104a49df24a6ec3f44fba25d26e0e19a17817
ripemd-160
9b915f3470ceec8f5a63ac7d1c079973f6d6fd0a
Diameter
42174178
Circumference
132494087.77599
Area
1.396957310453E+15
Volume
3.9277017512965E+22
Surface area
5.5878292418122E+15
Circumference
132494087.77599
Perimeter
84348356
Area
444665322493921
Diagonal
29821647.254769
Surface area
2667991934963526
Volume
9.376697230643E+21
Space diagonal
36523909.531727
Perimeter
63261267
Area
1.9254573273087E+14
Altitude
18261954.765863
Surface area
1.9254573273087E+14
Volume
1.1050543661535E+21
Height
9940549.0849228