20215561 is an odd 8-digits prime number following 20215560
and preceding 20215562 . In scientific notation, it is written as 2.0215561 × 10^7.
The sum of its digits is 22. It has a total of 1 prime factors and 2 positive divisors.
There are 20215560 positive integers (up to 20215561) that are relatively prime to 20215561.
20215561 has 2 divisors, whose sum is 20215562
The reverse of 20215561 is 16551202
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million two hundred fifteen thousand five hundred sixty-one
Scientific notation
2.0215561 × 10^7
Engineering notation
2.0215561 × 10^6
Prime Factorization
20215561
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20215561
Product of the distinct prime numbers
The prime factorization of 20215561 is 20215561.
Since it has a total of 1 prime factors.
1 , 6 , 88 , 23 , 956 , 685 , 7433 , 2978 , 15364 , 56962 , 888263 , 472987 , 7556245 , 1528405 , 33092892 , 67186100 , 739732461 , 181111517 , 6196617931 , 5407557952
n×2
40431122
n×3
60646683
n×4
80862244
n×5
101077805
n÷2
10107780.5
n÷3
6738520.3333333
n÷3
5053890.25
n÷5
4043112.2
n2
408668906544721
n3
8.2614712090581E+21
n4
1.6701027517646E+29
n5
3.3762064054565E+36
2 √n
4496.171816112
3 √n
272.41348318168
4 √n
67.053499655961
5 √n
28.915929657007
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20215562
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10107781
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4496.1719273177
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999010663
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20215561 can be divided by 2 positive divisors.
The sum of these divisors (counting 20215561) is 20215562, the average is 10107781.
Base
System
Value
2
Binary
1001101000111011100001001
3
Ternary
1102001001112111
4
Quaternary
1031013130021
5
Quinary
20133344221
6
Senary
2001142321
8
Octal
115073411
10
Decimal
20215561
12
Duodecimal
692a9a1
16
Hexadecimal
1347709
20
Vigesimal
666ii1
36
Base36
c1afd
md5
b06a249da3319ea6b26d9dec1ce6829b
sha1
ae30560d63e0f3299660392a7472e7ff1e9b67dd
sha256
7954a174d9ba2e61e0fb02c83aa00bdbfc17994e1df3a3aacee83d2d495b75d9
sha512
d9695c5a0862dc6000d493f9ce04f9cd04fa5527b8f078d9a8242f1d67b1b38b62716c2e296306e403903211ea0232f2c4c98fe2198e3a736c357bfc4b69f3ab
ripemd-160
96929eaa1077ebf1d54a9b8d61819b7420556767
Diameter
40431122
Circumference
127018115.85159
Area
1.2838712345515E+15
Volume
3.4605569677627E+22
Surface area
5.1354849382059E+15
Circumference
127018115.85159
Perimeter
80862244
Area
408668906544721
Diagonal
28589120.537181
Surface area
2452013439268326
Volume
8.2614712090581E+21
Space diagonal
35014378.755508
Perimeter
60646683
Area
1.7695882740227E+14
Altitude
17507189.377754
Surface area
1.7695882740227E+14
Volume
9.7362371908374E+20
Height
9529706.8457269