20561689 is an odd 8-digits prime number following 20561688
and preceding 20561690 . In scientific notation, it is written as 2.0561689 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 20561688 positive integers (up to 20561689) that are relatively prime to 20561689.
20561689 has 2 divisors, whose sum is 20561690
The reverse of 20561689 is 98616502
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million five hundred sixty-one thousand six hundred eighty-nine
Scientific notation
2.0561689 × 10^7
Engineering notation
2.0561689 × 10^6
Prime Factorization
20561689
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20561689
Product of the distinct prime numbers
The prime factorization of 20561689 is 20561689.
Since it has a total of 1 prime factors.
4 , 10 , 79 , 84 , 20 , 68 , 9035 , 5510 , 3501 , 51703 , 394596 , 837464 , 9660575 , 4837980 , 83755807 , 44890676 , 616892810 , 667719230 , 8006232870 , 7724130363
n×2
41123378
n×3
61685067
n×4
82246756
n×5
102808445
n÷2
10280844.5
n÷3
6853896.3333333
n÷3
5140422.25
n÷5
4112337.8
n2
422783054532721
n3
8.6931336817718E+21
n4
1.7874551120002E+29
n5
3.6753096114408E+36
2 √n
4534.4998621678
3 √n
273.95943509447
4 √n
67.338695132649
5 √n
29.014277284636
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20561690
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10280845
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4534.4999724336
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999027317
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20561689 can be divided by 2 positive divisors.
The sum of these divisors (counting 20561689) is 20561690, the average is 10280845.
Base
System
Value
2
Binary
1001110011011111100011001
3
Ternary
1102200122100001
4
Quaternary
1032123330121
5
Quinary
20230433224
6
Senary
2012413001
8
Octal
116337431
10
Decimal
20561689
12
Duodecimal
6a77161
16
Hexadecimal
139bf19
20
Vigesimal
68a449
36
Base36
c8pi1
md5
24d2bceee54bc87fdd9e9f7685a9a34c
sha1
a16549d6cdd8f51f4ab81e15ec4f5fef159e0cdd
sha256
ab2876bf7600ebb5bd46daf8f3963512fdbe98dd3792ec622ac4c067b1c0bc60
sha512
d029363ca53692e46379c6e25f0755ed31c1957802068ac5bb375032ee9ee6438f2019c3bd112c03706f8c77f2074132bb701fd3d43cca893be5387016267caf
ripemd-160
d7f23e647d8f29791c96ab9d7302ccf5d0f837f9
Diameter
41123378
Circumference
129192902.2156
Area
1.3282121381822E+15
Volume
3.6413713215105E+22
Surface area
5.312848552729E+15
Circumference
129192902.2156
Perimeter
82246756
Area
422783054532721
Diagonal
29078619.449098
Surface area
2536698327196326
Volume
8.6931336817718E+21
Space diagonal
35613890.03743
Perimeter
61685067
Area
1.8307043275746E+14
Altitude
17806945.018715
Surface area
1.8307043275746E+14
Volume
1.024495629357E+21
Height
9692873.1496992