20802649 is an odd 8-digits composite number following 20802648
and preceding 20802650 . In scientific notation, it is written as 2.0802649 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 17055456 positive integers (up to 20802649) that are relatively prime to 20802649.
20802649 has 8 divisors, whose sum is 24808320
The reverse of 20802649 is 94620802
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eight hundred two thousand six hundred forty-nine
Scientific notation
2.0802649 × 10^7
Engineering notation
2.0802649 × 10^6
Prime Factorization
7 × 23 × 129209
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20802649
Product of the distinct prime numbers
The prime factorization of 20802649 is 7 × 23 × 129209.
Since it has a total of 3 prime factors.
6 , 8 , 56 , 52 , 386 , 997 , 2756 , 8442 , 34327 , 42780 , 288926 , 799844 , 3937869 , 3213718 , 45093093 , 51146887 , 892849521 , 133289022 , 7590907641 , 4396451161
n×2
41605298
n×3
62407947
n×4
83210596
n×5
104013245
n÷2
10401324.5
n÷3
6934216.3333333
n÷3
5200662.25
n÷5
4160529.8
n2
432750205417201
n3
9.0023506279719E+21
n4
1.8727274028863E+29
n5
3.8957690834925E+36
2 √n
4560.9921069873
3 √n
275.0254477828
4 √n
67.535117583278
5 √n
29.081963716594
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
-20802648
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 20802649 can be divided by 8 positive divisors.
The sum of these divisors (counting 20802649) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010110110001011001
3
Ternary
1110010212212111
4
Quaternary
1033112301121
5
Quinary
20311141044
6
Senary
2021512321
8
Octal
117266131
10
Decimal
20802649
12
Duodecimal
6b726a1
16
Hexadecimal
13d6c59
20
Vigesimal
6a06c9
36
Base36
cdvfd
md5
435791363f987ebffda5142ffec1f8be
sha1
df815f1819007a6501867f7241b86d501a2f4246
sha256
e6b1ce9b0768278e72a97fb721182aea42c6565df807ca53dde8de7ae7b7837c
sha512
af6338578e4fd045e3076229bf5691aecfb3ddc115efe4d6dcc11d8cf7cb1343de5ea7b1dbda4f4c1cbc3a9cdba0453f89939b9378b85b71f1c8c20c56d637c5
ripemd-160
47f6e30b39208536bd9d659ab73487398c1988f0
Diameter
41605298
Circumference
130706898.54721
Area
1.3595248661782E+15
Volume
3.7708958130501E+22
Surface area
5.4380994647126E+15
Circumference
130706898.54721
Perimeter
83210596
Area
432750205417201
Diagonal
29419388.349087
Surface area
2596501232503206
Volume
9.0023506279719E+21
Space diagonal
36031245.000022
Perimeter
62407947
Area
1.8738633569212E+14
Altitude
18015622.500011
Surface area
1.8738633569212E+14
Volume
1.060937195943E+21
Height
9806462.783029