21000961 is an odd 8-digits composite number following 21000960
and preceding 21000962 . In scientific notation, it is written as 2.1000961 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20991424 positive integers (up to 21000961) that are relatively prime to 21000961.
21000961 has 4 divisors, whose sum is 21010500
The reverse of 21000961 is 16900012
Previous prime number is 3449
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million nine hundred sixty-one
Scientific notation
2.1000961 × 10^7
Engineering notation
2.1000961 × 10^6
Prime Factorization
3449 × 6089
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000961
Product of the distinct prime numbers
The prime factorization of 21000961 is 3449 × 6089.
Since it has a total of 2 prime factors.
5 , 4 , 46 , 28 , 318 , 729 , 8217 , 5259 , 47071 , 13515 , 357728 , 661666 , 2954047 , 7343102 , 40406247 , 30356721 , 633667786 , 617591218 , 1621067805 , 4313353797
n×2
42001922
n×3
63002883
n×4
84003844
n×5
105004805
n÷2
10500480.5
n÷3
7000320.3333333
n÷3
5250240.25
n÷5
4200192.2
n2
441040362923521
n3
9.2622714611827E+21
n4
1.9451660172771E+29
n5
4.0850355667362E+36
2 √n
4582.6805474525
3 √n
275.8966260281
4 √n
67.695498723715
5 √n
29.137201253206
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000960
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000961 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111001100000001
3
Ternary
1110111221220101
4
Quaternary
1100013030001
5
Quinary
20334012321
6
Senary
2030042401
8
Octal
120071401
10
Decimal
21000961
12
Duodecimal
7049401
16
Hexadecimal
1407301
20
Vigesimal
6b5281
36
Base36
ci4g1
md5
b0eeaa64a404a1a41f5dc4c19716da35
sha1
83089a784c9cf6e1df453ac6d0fcb98975611f10
sha256
baac1a83105f1922ad9b66974a400b9660fd2166bde76611382f9c1f606528be
sha512
a9058ff4eeb901b90ec9aa4f5a83d2ceb54c6adf588b072ec714277ec34aa2f62312a6cff885f108e7a2e16591a7c7bc7b32e3d6dc17fc29121f3cdbecff438c
ripemd-160
7ff6dd3c7b88b77575de11885c9a95aa8d2bd75c
Diameter
42001922
Circumference
131952929.59185
Area
1.3855691640971E+15
Volume
3.8797711970675E+22
Surface area
5.5422766563884E+15
Circumference
131952929.59185
Perimeter
84003844
Area
441040362923521
Diagonal
29699843.869068
Surface area
2646242177541126
Volume
9.2622714611827E+21
Space diagonal
36374731.459772
Perimeter
63002883
Area
1.9097607919304E+14
Altitude
18187365.729886
Surface area
1.9097607919304E+14
Volume
1.0915691598988E+21
Height
9899947.9563561