21005983 is an odd 8-digits prime number following 21005982
and preceding 21005984 . In scientific notation, it is written as 2.1005983 × 10^7.
The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors.
There are 21005982 positive integers (up to 21005983) that are relatively prime to 21005983.
21005983 has 2 divisors, whose sum is 21005984
The reverse of 21005983 is 38950012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five thousand nine hundred eighty-three
Scientific notation
2.1005983 × 10^7
Engineering notation
2.1005983 × 10^6
Prime Factorization
21005983
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21005983
Product of the distinct prime numbers
The prime factorization of 21005983 is 21005983.
Since it has a total of 1 prime factors.
8 , 9 , 24 , 68 , 657 , 720 , 2644 , 2984 , 38965 , 53572 , 480806 , 887147 , 2562218 , 3572945 , 11125651 , 42863389 , 409369468 , 540400961 , 931171117 , 2859295821
n×2
42011966
n×3
63017949
n×4
84023932
n×5
105029915
n÷2
10502991.5
n÷3
7001994.3333333
n÷3
5251495.75
n÷5
4201196.6
n2
441251321796289
n3
9.2689177643804E+21
n4
1.9470272898697E+29
n5
4.0899222151539E+36
2 √n
4583.2284472847
3 √n
275.91861617143
4 √n
67.699545399395
5 √n
29.138594646871
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21005984
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10502992
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4583.2285563781
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999904789
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21005983 can be divided by 2 positive divisors.
The sum of these divisors (counting 21005983) is 21005984, the average is 10502992.
Base
System
Value
2
Binary
1010000001000011010011111
3
Ternary
1110112012210101
4
Quaternary
1100020122133
5
Quinary
20334142413
6
Senary
2030121531
8
Octal
120103237
10
Decimal
21005983
12
Duodecimal
70502a7
16
Hexadecimal
140869f
20
Vigesimal
6b5ej3
36
Base36
ci8bj
md5
7d61da698db29fe424283456e07ddb92
sha1
35f11e057bd78e57fd8a9df83a34a1e40985f60e
sha256
e954c55eee326047a6ad7c269c7e5ae5551a6178cd1558a6990b19c78931b50a
sha512
cf0b9c6a4157f978aac8d1db184b6f9901668f66f5c7c28e2a09e5b455835aee90a9f0a4484b270578491beabc77d7227f01d2db61fbb9a8ee879ba63a12b026
ripemd-160
8638c89e439ce415139efd4c61c12df03204bf06
Diameter
42011966
Circumference
131984483.74846
Area
1.386231910942E+15
Volume
3.8825551940407E+22
Surface area
5.544927643768E+15
Circumference
131984483.74846
Perimeter
84023932
Area
441251321796289
Diagonal
29706946.049579
Surface area
2647507930777734
Volume
9.2689177643804E+21
Space diagonal
36383429.818928
Perimeter
63017949
Area
1.9106742706452E+14
Altitude
18191714.909464
Surface area
1.9106742706452E+14
Volume
1.0923524342423E+21
Height
9902315.3498596