20991626 is an even 8-digits composite number following 20991625
and preceding 20991627 . In scientific notation, it is written as 2.0991626 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 10495812 positive integers (up to 20991626) that are relatively prime to 20991626.
20991626 has 4 divisors, whose sum is 31487442
The reverse of 20991626 is 62619902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred ninety-one thousand six hundred twenty-six
Scientific notation
2.0991626 × 10^7
Engineering notation
2.0991626 × 10^6
Prime Factorization
2 × 10495813
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20991626
Product of the distinct prime numbers
The prime factorization of 20991626 is 2 × 10495813.
Since it has a total of 2 prime factors.
9 , 5 , 62 , 1 , 956 , 599 , 5140 , 7663 , 58195 , 17741 , 743613 , 226400 , 2309573 , 3070226 , 41247470 , 56690609 , 967625290 , 785220234 , 331896175 , 5347875194
n×2
41983252
n×3
62974878
n×4
83966504
n×5
104958130
n÷2
10495813
n÷3
6997208.6666667
n÷3
5247906.5
n÷5
4198325.2
n2
440648362123876
n3
9.249925615217E+21
n4
1.9417097904245E+29
n5
4.075964572113E+36
2 √n
4581.6619255462
3 √n
275.85574096727
4 √n
67.687974748446
5 √n
29.134610475119
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
-20991625
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 20991626 can be divided by 4 positive divisors.
The sum of these divisors (counting 20991626) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100111010001010
3
Ternary
1110111111002122
4
Quaternary
1100010322022
5
Quinary
20333213001
6
Senary
2025531242
8
Octal
120047212
10
Decimal
20991626
12
Duodecimal
7043b22
16
Hexadecimal
1404e8a
20
Vigesimal
6b3j16
36
Base36
chx8q
md5
72c5d8ace907999c5dc98c8e435ecf58
sha1
8e8318da959ef7b4e6bfe476161ff498f85d1165
sha256
5586f9c65cc3a59e70fc41badb81b98a658897e5ff68790d1f56462c8baed5e4
sha512
cfcc6c7fbaa730e4a823b4f9ffba96345e86325c00e9fb600183a63f5af9fad8f690cea2f2f0c917879ad96120ed68b1e10ce611f817b994ab6615dabe0a854e
ripemd-160
3ac88fe5792a16ee572e08397be87f2b40e6c93b
Diameter
41983252
Circumference
131894276.05701
Area
1.3843376572647E+15
Volume
3.8745997812024E+22
Surface area
5.537350629059E+15
Circumference
131894276.05701
Perimeter
83966504
Area
440648362123876
Diagonal
29686642.185464
Surface area
2643890172743256
Volume
9.249925615217E+21
Space diagonal
36358562.765484
Perimeter
62974878
Area
1.9080633786764E+14
Altitude
18179281.382742
Surface area
1.9080633786764E+14
Volume
1.0901141879985E+21
Height
9895547.3951546