20561621 is an odd 8-digits prime number following 20561620
and preceding 20561622 . In scientific notation, it is written as 2.0561621 × 10^7.
The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors.
There are 20561620 positive integers (up to 20561621) that are relatively prime to 20561621.
20561621 has 2 divisors, whose sum is 20561622
The reverse of 20561621 is 12616502
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million five hundred sixty-one thousand six hundred twenty-one
Scientific notation
2.0561621 × 10^7
Engineering notation
2.0561621 × 10^6
Prime Factorization
20561621
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20561621
Product of the distinct prime numbers
The prime factorization of 20561621 is 20561621.
Since it has a total of 1 prime factors.
5 , 5 , 11 , 98 , 496 , 424 , 5423 , 828 , 76213 , 41145 , 362770 , 290392 , 3324272 , 9394310 , 41696356 , 43499854 , 259049915 , 129386820 , 1501801298 , 8763060253
n×2
41123242
n×3
61684863
n×4
82246484
n×5
102808105
n÷2
10280810.5
n÷3
6853873.6666667
n÷3
5140405.25
n÷5
4112324.2
n2
422780258147641
n3
8.693047434314E+21
n4
1.7874314667939E+29
n5
3.6752488383689E+36
2 √n
4534.492364091
3 √n
273.95913308844
4 √n
67.338639458271
5 √n
29.014258093863
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20561622
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10280811
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4534.492474357
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999027314
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20561621 can be divided by 2 positive divisors.
The sum of these divisors (counting 20561621) is 20561622, the average is 10280811.
Base
System
Value
2
Binary
1001110011011111011010101
3
Ternary
1102200122020112
4
Quaternary
1032123323111
5
Quinary
20230432441
6
Senary
2012412405
8
Octal
116337325
10
Decimal
20561621
12
Duodecimal
6a77105
16
Hexadecimal
139bed5
20
Vigesimal
68a411
36
Base36
c8pg5
md5
2ef627a44a872dd33780b1c1f4b11754
sha1
b8220a033d43cbcfded3dd063e14688d8b7fb973
sha256
09e163494c12d1906a4da36147da7ade60eac4b37f07a9cf763c4070062759d3
sha512
889fe81aa233d236f68358d7311b1d3aa1816c94f3f8d0b0f79a005942b329104f567fac0792694531082d9a20ed34a788abbc0ae3f50d2ca19f4007f9049034
ripemd-160
984f2d06eb01fbe381da15cd3d3a1f9e63451e59
Diameter
41123242
Circumference
129192474.959
Area
1.3282033530794E+15
Volume
3.6413351942598E+22
Surface area
5.3128134123177E+15
Circumference
129192474.959
Perimeter
82246484
Area
422780258147641
Diagonal
29078523.282575
Surface area
2536681548885846
Volume
8.693047434314E+21
Space diagonal
35613772.257975
Perimeter
61684863
Area
1.830692218872E+14
Altitude
17806886.128988
Surface area
1.830692218872E+14
Volume
1.0244854649966E+21
Height
9692841.0941918