21000889 is an odd 8-digits composite number following 21000888
and preceding 21000890 . In scientific notation, it is written as 2.1000889 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 16616016 positive integers (up to 21000889) that are relatively prime to 21000889.
21000889 has 8 divisors, whose sum is 25847360
The reverse of 21000889 is 98800012
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million eight hundred eighty-nine
Scientific notation
2.1000889 × 10^7
Engineering notation
2.1000889 × 10^6
Prime Factorization
7 × 13 × 230779
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000889
Product of the distinct prime numbers
The prime factorization of 21000889 is 7 × 13 × 230779.
Since it has a total of 3 prime factors.
4 , 6 , 43 , 64 , 955 , 135 , 2340 , 6314 , 48999 , 35038 , 864547 , 812834 , 2861757 , 47896 , 80106244 , 97091568 , 867509206 , 517953082 , 3623243052 , 1676249371
n×2
42001778
n×3
63002667
n×4
84003556
n×5
105004445
n÷2
10500444.5
n÷3
7000296.3333333
n÷3
5250222.25
n÷5
4200177.8
n2
441037338790321
n3
9.2621761967909E+21
n4
1.9451393420725E+29
n5
4.0849655412397E+36
2 √n
4582.6726917815
3 √n
275.89631073174
4 √n
67.695440701583
5 √n
29.137181274298
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
-21000888
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 21000889 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000889) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001010111001
3
Ternary
1110111221210201
4
Quaternary
1100013022321
5
Quinary
20334012024
6
Senary
2030042201
8
Octal
120071271
10
Decimal
21000889
12
Duodecimal
7049361
16
Hexadecimal
14072b9
20
Vigesimal
6b5249
36
Base36
ci4e1
md5
170746d35f003ef59becd863b0655fe1
sha1
b98df9eed23421e8408c54ea2a799001bb834fdb
sha256
90561e513895b397318fb678ec76cfe4a257e8ea811207f3b9af13d319277ac6
sha512
b35d05bae6bae3cb3fae05088a651518323db59548ed133d31c4908a14f63dc05ea12584a5148820c0b251e4d7a3626cb3b43c15b5f9ffb6aad3e9aedfdd199e
ripemd-160
1b801093f5be4c6fbc8a0e285e11ea7260b1f7d7
Diameter
42001778
Circumference
131952477.20251
Area
1.3855596635025E+15
Volume
3.8797312928123E+22
Surface area
5.5422386540099E+15
Circumference
131952477.20251
Perimeter
84003556
Area
441037338790321
Diagonal
29699742.045692
Surface area
2646224032741926
Volume
9.2621761967909E+21
Space diagonal
36374606.752114
Perimeter
63002667
Area
1.9097476970495E+14
Altitude
18187303.376057
Surface area
1.9097476970495E+14
Volume
1.0915579328826E+21
Height
9899914.0152307