21005089 is an odd 8-digits composite number following 21005088
and preceding 21005090 . In scientific notation, it is written as 2.1005089 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 17056656 positive integers (up to 21005089) that are relatively prime to 21005089.
21005089 has 8 divisors, whose sum is 25269440
The reverse of 21005089 is 98050012
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million five thousand eighty-nine
Scientific notation
2.1005089 × 10^7
Engineering notation
2.1005089 × 10^6
Prime Factorization
19 × 7 × 157933
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21005089
Product of the distinct prime numbers
The prime factorization of 21005089 is 19 × 7 × 157933.
Since it has a total of 3 prime factors.
8 , 10 , 26 , 57 , 595 , 159 , 8901 , 1581 , 53033 , 47796 , 748854 , 874155 , 878430 , 1602701 , 94051130 , 95452662 , 475757395 , 674019224 , 3470759435 , 3219630477
n×2
42010178
n×3
63015267
n×4
84020356
n×5
105025445
n÷2
10502544.5
n÷3
7001696.3333333
n÷3
5251272.25
n÷5
4201017.8
n2
441213763897921
n3
9.2677343787008E+21
n4
1.9466958545297E+29
n5
4.0890519680327E+36
2 √n
4583.1309167424
3 √n
275.91470181455
4 √n
67.698825076528
5 √n
29.138346618992
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
-21005088
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 21005089 can be divided by 8 positive divisors.
The sum of these divisors (counting 21005089) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001000001100100001
3
Ternary
1110112011120021
4
Quaternary
1100020030201
5
Quinary
20334130324
6
Senary
2030113441
8
Octal
120101441
10
Decimal
21005089
12
Duodecimal
704b881
16
Hexadecimal
1408321
20
Vigesimal
6b5ce9
36
Base36
ci7mp
md5
663b230445212f3f93e933b50a8cd813
sha1
0aaab2dc5886f9db7ab523e510cf7dc258bae4f7
sha256
3774fe77b30cc194be91882283fcfde30a6d271a6568a4e5b908a78819df950d
sha512
4b19247949cdedafe24d373cb6f74bbc543512fcdde86669883e2911acc2d4f7a7527c0610928a3de78d5c2dcf524ab15278ac9123671730013a7992e88f56c2
ripemd-160
47787369fcb148089c028deaae5124d713a8d68f
Diameter
42010178
Circumference
131978866.5808
Area
1.3861139193244E+15
Volume
3.8820594986064E+22
Surface area
5.5444556772976E+15
Circumference
131978866.5808
Perimeter
84020356
Area
441213763897921
Diagonal
29705681.742654
Surface area
2647282583387526
Volume
9.2677343787008E+21
Space diagonal
36381881.365506
Perimeter
63015267
Area
1.9105116401747E+14
Altitude
18190940.682753
Surface area
1.9105116401747E+14
Volume
1.0922129709025E+21
Height
9901893.914218