20656491 is an odd 8-digits composite number following 20656490
and preceding 20656492 . In scientific notation, it is written as 2.0656491 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 13545120 positive integers (up to 20656491) that are relatively prime to 20656491.
20656491 has 8 divisors, whose sum is 27993744
The reverse of 20656491 is 19465602
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million six hundred fifty-six thousand four hundred ninety-one
Scientific notation
2.0656491 × 10^7
Engineering notation
2.0656491 × 10^6
Prime Factorization
3 × 61 × 112877
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20656491
Product of the distinct prime numbers
The prime factorization of 20656491 is 3 × 61 × 112877.
Since it has a total of 3 prime factors.
9 , 3 , 22 , 24 , 333 , 922 , 2864 , 8688 , 58996 , 77769 , 285613 , 413849 , 6828046 , 3805398 , 33125558 , 61214817 , 2767459 , 162507507 , 2026104676 , 2265861909
n×2
41312982
n×3
61969473
n×4
82625964
n×5
103282455
n÷2
10328245.5
n÷3
6885497
n÷3
5164122.75
n÷5
4131298.2
n2
426690620433081
n3
8.8139309607604E+21
n4
1.8206488556557E+29
n5
3.7608216701012E+36
2 √n
4544.9412537458
3 √n
274.37983001479
4 √n
67.416179465658
5 √n
29.040982801878
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20656490
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20656491 can be divided by 8 positive divisors.
The sum of these divisors (counting 20656491) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110110011000101101011
3
Ternary
1102212110101020
4
Quaternary
1032303011223
5
Quinary
20242001431
6
Senary
2014423523
8
Octal
116630553
10
Decimal
20656491
12
Duodecimal
6b01ba3
16
Hexadecimal
13b316b
20
Vigesimal
69214b
36
Base36
caqnf
md5
56417a2701ba1117c855ac8eff4f94d9
sha1
39c62627bef97a4aac1f75131840361ad6b4c05a
sha256
14d90aad7574c4803703e946ee291f4eb6f3d46751d1e6c7e2dda6c0487316dc
sha512
a46ec7ad44739ee4d8b308319e3ef72863dd41a5525002e95f621d74533c2191606d943d1e34d439b02a8f9b66286c742dc464f5743d360958cc7f8cad76ae8b
ripemd-160
c5651a176ecce37c88da28007be371fd52fe2424
Diameter
41312982
Circumference
129788560.74909
Area
1.3404881185082E+15
Volume
3.6919707674096E+22
Surface area
5.361952474033E+15
Circumference
129788560.74909
Perimeter
82625964
Area
426690620433081
Diagonal
29212689.723238
Surface area
2560143722598486
Volume
8.8139309607604E+21
Space diagonal
35778091.918089
Perimeter
61969473
Area
1.847624584258E+14
Altitude
17889045.959045
Surface area
1.847624584258E+14
Volume
1.0387317252106E+21
Height
9737563.2410793