20656489 is an odd 8-digits composite number following 20656488
and preceding 20656490 . In scientific notation, it is written as 2.0656489 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 17705268 positive integers (up to 20656489) that are relatively prime to 20656489.
20656489 has 8 divisors, whose sum is 24089600
The reverse of 20656489 is 98465602
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million six hundred fifty-six thousand four hundred eighty-nine
Scientific notation
2.0656489 × 10^7
Engineering notation
2.0656489 × 10^6
Prime Factorization
49 × 7 × 60223
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20656489
Product of the distinct prime numbers
The prime factorization of 20656489 is 49 × 7 × 60223.
Since it has a total of 3 prime factors.
9 , 5 , 94 , 45 , 37 , 602 , 4394 , 9163 , 15192 , 83570 , 510276 , 668118 , 2069395 , 3361740 , 56784722 , 69253205 , 268575154 , 783361223 , 8382076709 , 8357069711
n×2
41312978
n×3
61969467
n×4
82625956
n×5
103282445
n÷2
10328244.5
n÷3
6885496.3333333
n÷3
5164122.25
n÷5
4131297.8
n2
426690537807121
n3
8.8139284006169E+21
n4
1.8206481505413E+29
n5
3.7608198494527E+36
2 √n
4544.9410337209
3 √n
274.37982115947
4 √n
67.416177833817
5 √n
29.040982239518
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
-20656488
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 20656489 can be divided by 8 positive divisors.
The sum of these divisors (counting 20656489) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110110011000101101001
3
Ternary
1102212110101011
4
Quaternary
1032303011221
5
Quinary
20242001424
6
Senary
2014423521
8
Octal
116630551
10
Decimal
20656489
12
Duodecimal
6b01ba1
16
Hexadecimal
13b3169
20
Vigesimal
692149
36
Base36
caqnd
md5
c170c53a2eed2f11b372956c816394d9
sha1
27d32a9ef4fb71f61435a2e28d5bca66a092454a
sha256
d8b22d335e39738a9d5326746cf6dad07c6a6a23403331fde43f92d220e5c1f4
sha512
71c9b12ad4b779e287f7e86e314a39fb128700e096117ecffd3013ca618098a27aa27e1a34e60493230c4103cc0c33557c389313d59b8e025614bed2cdc67b34
ripemd-160
75b2d0711f4c3419658a9ad02c3bc8699ea6af6c
Diameter
41312978
Circumference
129788548.18272
Area
1.3404878589311E+15
Volume
3.6919696950193E+22
Surface area
5.3619514357245E+15
Circumference
129788548.18272
Perimeter
82625956
Area
426690537807121
Diagonal
29212686.894811
Surface area
2560143226842726
Volume
8.8139284006169E+21
Space diagonal
35778088.453988
Perimeter
61969467
Area
1.8476242264771E+14
Altitude
17889044.226994
Surface area
1.8476242264771E+14
Volume
1.0387314234948E+21
Height
9737562.2982702