20561609 is an odd 8-digits composite number following 20561608
and preceding 20561610 . In scientific notation, it is written as 2.0561609 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 18971568 positive integers (up to 20561609) that are relatively prime to 20561609.
20561609 has 12 divisors, whose sum is 22241856
The reverse of 20561609 is 90616502
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million five hundred sixty-one thousand six hundred nine
Scientific notation
2.0561609 × 10^7
Engineering notation
2.0561609 × 10^6
Prime Factorization
29 × 23 × 29 × 1063
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
709021
Product of the distinct prime numbers
The prime factorization of 20561609 is 29 × 23 × 29 × 1063.
Since it has a total of 4 prime factors.
1 , 8 , 71 , 73 , 194 , 482 , 3618 , 8204 , 27561 , 62760 , 915371 , 611739 , 3438103 , 7787837 , 32532127 , 57889388 , 213151914 , 688187294 , 287594730 , 4235814620
n×2
41123218
n×3
61684827
n×4
82246436
n×5
102808045
n÷2
10280804.5
n÷3
6853869.6666667
n÷3
5140402.25
n÷5
4112321.8
n2
422779764668881
n3
8.6930322142335E+21
n4
1.7874272941347E+29
n5
3.6752381137927E+36
2 √n
4534.4910408997
3 √n
273.95907979319
4 √n
67.338629633367
5 √n
29.014254707251
1 , 23 , 29 , 667 , 841 , 1063 , 19343 , 24449 , 30827 , 709021 , 893983 , 20561609
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20561608
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20561609 can be divided by 12 positive divisors.
The sum of these divisors (counting 20561609) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110011011111011001001
3
Ternary
1102200122020002
4
Quaternary
1032123323021
5
Quinary
20230432414
6
Senary
2012412345
8
Octal
116337311
10
Decimal
20561609
12
Duodecimal
6a770b5
16
Hexadecimal
139bec9
20
Vigesimal
68a409
36
Base36
c8pft
md5
26576d038351f5aedf46bf51fee2457b
sha1
2453e77c586f3c9d2150ea79bc73f4aebc25708a
sha256
0d1adbae628968a57c897b9551126572eb4b2bd15eb8f710faee54019766a5fb
sha512
19af4299129f7e28574c1eb45d38b37dd2f7c9aa62fd7b2fce91b7753675f2c68aa35cb9d55ee1d31eb36b74c69aa4ff99b62850d12e88e48cee7e8a3eb12d9c
ripemd-160
b8db4c6b02a478666cfc223c425c96c16d9aa95e
Diameter
41123218
Circumference
129192399.56077
Area
1.3282018027702E+15
Volume
3.6413288188874E+22
Surface area
5.3128072110807E+15
Circumference
129192399.56077
Perimeter
82246436
Area
422779764668881
Diagonal
29078506.312013
Surface area
2536678588013286
Volume
8.6930322142335E+21
Space diagonal
35613751.473365
Perimeter
61684827
Area
1.8306900820463E+14
Altitude
17806875.736683
Surface area
1.8306900820463E+14
Volume
1.0244836712929E+21
Height
9692835.4373376