21039971 is an odd 8-digits prime number following 21039970
and preceding 21039972 . In scientific notation, it is written as 2.1039971 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 21039970 positive integers (up to 21039971) that are relatively prime to 21039971.
21039971 has 2 divisors, whose sum is 21039972
The reverse of 21039971 is 17993012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million thirty-nine thousand nine hundred seventy-one
Scientific notation
2.1039971 × 10^7
Engineering notation
2.1039971 × 10^6
Prime Factorization
21039971
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21039971
Product of the distinct prime numbers
The prime factorization of 21039971 is 21039971.
Since it has a total of 1 prime factors.
2 , 1 , 24 , 8 , 521 , 607 , 4688 , 6743 , 8567 , 40356 , 768914 , 246955 , 1577411 , 7112245 , 49646399 , 41645261 , 772947984 , 744846380 , 8886903342 , 5893395773
n×2
42079942
n×3
63119913
n×4
84159884
n×5
105199855
n÷2
10519985.5
n÷3
7013323.6666667
n÷3
5259992.75
n÷5
4207994.2
n2
442680379680841
n3
9.3139823507539E+21
n4
1.9596591855437E+29
n5
4.1231172433724E+36
2 √n
4586.9348153206
3 √n
276.06734948857
4 √n
67.726913522769
5 √n
29.148017887933
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21039972
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10519986
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4586.9349243258
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999049428
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21039971 can be divided by 2 positive divisors.
The sum of these divisors (counting 21039971) is 21039972, the average is 10519986.
Base
System
Value
2
Binary
1010000010000101101100011
3
Ternary
1110120221102012
4
Quaternary
1100100231203
5
Quinary
20341234341
6
Senary
2030543135
8
Octal
120205543
10
Decimal
21039971
12
Duodecimal
7067aab
16
Hexadecimal
1410b63
20
Vigesimal
6b9jib
36
Base36
ciyjn
md5
91cc9258a9f05c3507097f676e449bd3
sha1
a1b02f8c552612b82ddce27d49d5aa91601b73b2
sha256
67cc4d53ad070083a4ab777c800e36dc91cb83693413bbfcee91e89499dfb7d7
sha512
179019d956e254208344a92ced41362701773a003bd10876679b0528f0a35829c1049024aeda36fb2ea573e0fcbd457792a6522215f9a26bde2a19b899d5dfe7
ripemd-160
fac31bf859302c2e8729787f12c7af9636186fb5
Diameter
42079942
Circumference
132198036.65068
Area
1.3907214286937E+15
Volume
3.9014318038391E+22
Surface area
5.5628857147747E+15
Circumference
132198036.65068
Perimeter
84159884
Area
442680379680841
Diagonal
29755012.340137
Surface area
2656082278085046
Volume
9.3139823507539E+21
Space diagonal
36442298.761776
Perimeter
63119913
Area
1.9168622728027E+14
Altitude
18221149.380888
Surface area
1.9168622728027E+14
Volume
1.0976633466783E+21
Height
9918337.4467122