20697621 is an odd 8-digits composite number following 20697620
and preceding 20697622 . In scientific notation, it is written as 2.0697621 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 11827200 positive integers (up to 20697621) that are relatively prime to 20697621.
20697621 has 4 divisors, whose sum is 21683244
The reverse of 20697621 is 12679602
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million six hundred ninety-seven thousand six hundred twenty-one
Scientific notation
2.0697621 × 10^7
Engineering notation
2.0697621 × 10^6
Prime Factorization
21 × 985601
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20697621
Product of the distinct prime numbers
The prime factorization of 20697621 is 21 × 985601.
Since it has a total of 2 prime factors.
8 , 7 , 85 , 98 , 128 , 802 , 6222 , 6853 , 81969 , 60490 , 5054 , 138589 , 9132436 , 6400865 , 46542108 , 98098868 , 647404909 , 73904325 , 5253644623 , 4639428984
n×2
41395242
n×3
62092863
n×4
82790484
n×5
103488105
n÷2
10348810.5
n÷3
6899207
n÷3
5174405.25
n÷5
4139524.2
n2
428391515059641
n3
8.8666852183202E+21
n4
1.8351929017509E+29
n5
3.7984127142331E+36
2 √n
4549.463814561
3 √n
274.56181898395
4 √n
67.44971322816
5 √n
29.052538544095
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
-20697620
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 20697621 can be divided by 4 positive divisors.
The sum of these divisors (counting 20697621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111101001000010101
3
Ternary
1102221112210120
4
Quaternary
1032331020111
5
Quinary
20244310441
6
Senary
2015342153
8
Octal
116751025
10
Decimal
20697621
12
Duodecimal
6b21959
16
Hexadecimal
13bd215
20
Vigesimal
697411
36
Base36
cbmdx
md5
ebde65d647b78361228fbfe3b3ae25bb
sha1
3f9a72202b70cd2e3144b5b3727a658432ddc0df
sha256
3b1f370068dd36eb4d72c52641290bfe6a6afa70dae2a4e01083dc1b892b615a
sha512
a85a97c2cb115c62f0f9e3cf634eae726a47309bf39cb9e83c45ddcf2c2b62cdda2618409c16d83c5b79a0a186445dc6b69b3433ca565706aad9da368ba11903
ripemd-160
b544c271f6bd9780590fa5b84d61d3ca848fdd6c
Diameter
41395242
Circumference
130046988.16077
Area
1.3458316365716E+15
Volume
3.7140684191424E+22
Surface area
5.3833265462863E+15
Circumference
130046988.16077
Perimeter
82790484
Area
428391515059641
Diagonal
29270856.327058
Surface area
2570349090357846
Volume
8.8666852183202E+21
Space diagonal
35849331.167805
Perimeter
62092863
Area
1.8549896740368E+14
Altitude
17924665.583902
Surface area
1.8549896740368E+14
Volume
1.0449488740868E+21
Height
9756952.1090194